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Leonardo Polo (February 1, 1926 – February 9, 2013) was a renowned Spanish philosopher best known for his philosophical method called ''abandonment of the mental limit'' and the profound philosophical implications and results of the application of this method. This method of ''detecting the mental limit in conditions such that it can be abandoned'', results in a rethinking of classical and modern themes that opens up a wide range of philosophical fields. Principal among these are: (1) the act of being of the physical universe (''
metaphysics Metaphysics is the branch of philosophy that studies the fundamental nature of reality, the first principles of being, identity and change, space and time, causality, necessity, and possibility. It includes questions about the nature of conscio ...
''); (2) the quadruple con-causality (or essence) of the physical universe (''
philosophy of nature Nature has two inter-related meanings in philosophy and natural philosophy. On the one hand, it means the set of all things which are natural, or subject to the normal working of the laws of nature. On the other hand, it means the essential prope ...
''); (3) the act of being of the human person (''transcendental anthropology''); (4) the manifestation of the human person through its essence (''anthropology of the human essence''). In addition to this, his works cover a wide range of fields including
psychology Psychology is the scientific study of mind and behavior. Psychology includes the study of conscious and unconscious phenomena, including feelings and thoughts. It is an academic discipline of immense scope, crossing the boundaries betwe ...
,
neuroscience Neuroscience is the scientific study of the nervous system (the brain, spinal cord, and peripheral nervous system), its functions and disorders. It is a multidisciplinary science that combines physiology, anatomy, molecular biology, development ...
,
philosophy of science Philosophy of science is a branch of philosophy concerned with the foundations, methods, and implications of science. The central questions of this study concern what qualifies as science, the reliability of scientific theories, and the ultim ...
,
philosophy of language In analytic philosophy, philosophy of language investigates the nature of language and the relations between language, language users, and the world. Investigations may include inquiry into the nature of meaning, intentionality, reference, ...
,
social ethics Macroethics (from the Greek prefix "makros-" meaning "large" and "ethos" meaning character) is a term coined in the late 20th century to distinguish large-scale ethics from individual ethics, or microethics. It is a type of applied ethics. Macroeth ...
,
political economy Political economy is the study of how Macroeconomics, economic systems (e.g. Marketplace, markets and Economy, national economies) and Politics, political systems (e.g. law, Institution, institutions, government) are linked. Widely studied ph ...
and business theory. Throughout his more than forty books, Polo engaged with both Classical and Medieval thinkers such as
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of phil ...
,
Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wi ...
, and
William of Ockham William of Ockham, OFM (; also Occam, from la, Gulielmus Occamus; 1287 – 10 April 1347) was an English Franciscan friar, scholastic philosopher, apologist, and Catholic theologian, who is believed to have been born in Ockham, a small vill ...
, as well as Modern and Contemporary philosophers such as Descartes,
Kant Immanuel Kant (, , ; 22 April 1724 – 12 February 1804) was a German Philosophy, philosopher and one of the central Age of Enlightenment, Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemolo ...
,
Hegel Georg Wilhelm Friedrich Hegel (; ; 27 August 1770 – 14 November 1831) was a German philosopher. He is one of the most important figures in German idealism and one of the founding figures of modern Western philosophy. His influence extends a ...
,
Husserl , thesis1_title = Beiträge zur Variationsrechnung (Contributions to the Calculus of Variations) , thesis1_url = https://fedora.phaidra.univie.ac.at/fedora/get/o:58535/bdef:Book/view , thesis1_year = 1883 , thesis2_title ...
,
Heidegger Martin Heidegger (; ; 26 September 188926 May 1976) was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is among the most important and influential philosophers of the 20th centur ...
, and
Nietzsche Friedrich Wilhelm Nietzsche (; or ; 15 October 1844 – 25 August 1900) was a German philosopher, Prose poetry, prose poet, cultural critic, Philology, philologist, and composer whose work has exerted a profound influence on contemporary philo ...
. In dialogue with the great thinkers of the history of philosophy, Polo sought to further the achievements of traditional philosophy as well as rectify and correct the project of
Modern philosophy Modern philosophy is philosophy developed in the modern era and associated with modernity. It is not a specific doctrine or school (and thus should not be confused with ''Modernism''), although there are certain assumptions common to much of it ...
. Already during his lifetime, interest in his philosophy gave rise to numerous conferences and study workshops, including two international congresses; the publication of more than twenty books and 200 scholarly articles; dozens of doctoral dissertations; and two philosophical Journals dedicated specially to his thought.


Life


Early life (1926–1949)

Leonardo Polo was born in
Madrid Madrid ( , ) is the capital and most populous city of Spain. The city has almost 3.4 million inhabitants and a metropolitan area population of approximately 6.7 million. It is the second-largest city in the European Union (EU), and ...
, February 1, 1926. He attended elementary school at the French High School (Liceo francés) of Madrid, and started his secondary education in Madrid, just as the Spanish Civil War was beginning in 1936. At this time, during the
Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlists, and The Rebellion ( es, La Rebelión, lin ...
, his father held the position of Vice-mayor of the city. When the Republican government urged civilian to leave the capital city of Spain, Polo's family moved to
Albacete Albacete (, also , ; ar, ﭐَلبَسِيط, Al-Basīṭ) is a city and municipality in the Spanish autonomous communities of Spain, autonomous community of Castilla–La Mancha, and capital of the province of Albacete. Lying in the south-ea ...
, where he spent his first two years of secondary education. His father, a lawyer by profession, held the position of Chief Prosecutor for the city of Albacete from 1936 to 1937. At the end of the Spanish Civil War, the family returned to Madrid, except for his father, who was forced into exile, first to Nicaragua and then to Chile, where he died in 1946. Upon the return of his family to Madrid, Leonardo Polo continued his secondary education at the Cardinal Cisneros Institute. However, the change of the 1934 plan of studies for that of 1938 forced him to repeat the second year of studies that he had already done in Albacete. During this period, he read the book ''Fundamental Philosophy'' by the Spanish philosopher
Jaime Balmes Jaime Luciano Balmes y Urpiá ( ca, Jaume Llucià Antoni Balmes i Urpià; August 28, 1810July 9, 1848) was a Spanish philosopher, theologian, Catholic apologist, sociologist and political writer. Familiar with the doctrine of Saint Thomas Aqui ...
. He was fifteen years old at the time. The basic idea that he drew from this work was of the importance of the first principles, that these could not just be one, and that philosophy must be understood from the point of view of these first principles (in a doctoral course about the Logos in 1995, he would say, "philosophy is the knowledge of principles by principles"). The importance given to the first principles then led him to the
Summa Theologiae The ''Summa Theologiae'' or ''Summa Theologica'' (), often referred to simply as the ''Summa'', is the best-known work of Thomas Aquinas (1225–1274), a scholastic theologian and Doctor of the Church. It is a compendium of all of the main t ...
of
Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wi ...
, and more specifically Question 45, which presents creation as an accidental relation. This led Polo think that Thomas Aquinas could be corrected and expanded on this point, since if creation has to do with what is first, if it is ''extra nihilum'', if created act of being is being insofar as being, then the relation with the Creator cannot be an accident, but rather a relation of principles. Polo would later make numerous references to Aquinas in his works, especially with regard to the real distinction between essence and act of being and the need to expand this distinction and apply it to the study of the human person in what Polo would eventually call a transcendental anthropology. At school he also read
Ortega y Gasset Ortega is a Spanish surname. A baptismal record in 1570 records a ''de Ortega'' "from the village of Ortega". There were several villages of this name in Spain. The toponym derives from Latin ''urtica'', meaning "nettle". Some of the Ortega spel ...
,
Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wit ...
, and
Xavier Zubiri Xavier Zubiri (4 December 1898 – 21 September 1983) was a Spanish philosopher. Zubiri was a member of the Madrid School, composed of philosophers José Ortega y Gasset (the founder of the group), José Gaos, and Julián Marías, among other ...
(including the first edition of Naturaleza, Historia y Dios published in 1942). In later years, Polo would also be able to attend lectures by Zubiri on the concept in Madrid and another by Ortega y Gasset on
Toynbee Toynbee is a surname. Notable people with the surname include: * Arnold Toynbee (1852–1883), British economic historian * Arnold Joseph Toynbee (1889–1975), British historian * Geoffrey Toynbee (1885–1914), English cricketer * Henry Toynb ...
. After secondary school in 1945 and obtaining an extraordinary prize in the State exam, Polo decided to study law. This decision was influenced by family events. At the end of the Spanish Civil War, his uncle, Agustín Barrena, was left in charge of a law firm in which his father and his uncle Luis had once worked. A career in law offered him the opportunity of joining the firm with his uncle and to continue a family tradition, in spite of his own personal inclinations toward more theoretical subjects, and more concretely, toward he study of mathematics. Mathematics did not, however, seem to have much of a future in a country that had just come out of a civil war. For this reason, he studied law for four years.


Discovery of the mental limit and early philosophical studies (1952–1966)

In 1949, recently graduated, he started practicing law and, as he would later recount, he had to decide between making money by doing law (something which bored him) or to follow his inclinations toward theory and research. To his uncle's great disappointment, he chose the latter, and enrolled in doctoral courses of law. Of these courses, he remembers the one given by García Valdecasas, professor of civil law, with whom he held conversations about Hegel. Upon finishing his doctoral course work, Polo was faced with the choice of doing a doctoral dissertation, but also with the problem of how to make a living during those years dedicated to research. One possibility was to seek a teaching position; and he in fact prepared for a few professorial exams even though in the end he did not pursue them. The topic of research that interested him was the development of an existential interpretation of natural right. During this time his readings centered around
Hegel Georg Wilhelm Friedrich Hegel (; ; 27 August 1770 – 14 November 1831) was a German philosopher. He is one of the most important figures in German idealism and one of the founding figures of modern Western philosophy. His influence extends a ...
's
Philosophy of Right ''Elements of the Philosophy of Right'' (german: Grundlinien der Philosophie des Rechts) is a work by Georg Wilhelm Friedrich Hegel published in 1820, though the book's original title page dates it to 1821. Hegel's most mature statement of his ...
,
Heidegger Martin Heidegger (; ; 26 September 188926 May 1976) was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is among the most important and influential philosophers of the 20th centur ...
's
Being and Time ''Being and Time'' (german: Sein und Zeit) is the 1927 ''magnum opus'' of German philosopher Martin Heidegger and a key document of existentialism. ''Being and Time'' had a notable impact on subsequent philosophy, literary theory and many other ...
,
Kant Immanuel Kant (, , ; 22 April 1724 – 12 February 1804) was a German Philosophy, philosopher and one of the central Age of Enlightenment, Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemolo ...
's Critique of the Practical Reason, Spinoza's Ethics, as well as a number of works by
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of phil ...
and
Leibniz Gottfried Wilhelm (von) Leibniz . ( – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat. He is one of the most prominent figures in both the history of philosophy and the history of mathema ...
. It was at this time that Polo began enrolling in classes of philosophy. It was spring of 1950 when Polo became aware the existence of what he calls the mental limit. He describes detecting this limit in these terms: :“… it suddenly occurred to me, period. I was thinking about thinking and being, and about what being had to do with thinking; then I realized that we cannot arrive at being if one does not abandon the supposition of the object, because the supposition makes the object limited and a limited knowledge cannot be a knowledge of being if this is taken in the transcendental sense.” (from an interview to Prof. Dr. Juan Cruz in “Anuario Filosófico” XXV/1 (1992), § 46. * https://web.archive.org/web/20070930181715/http://dspace.unav.es/handle/1721.1/687] You can read that interview here). In other words, to become aware of the mental limit of the need to abandon it is to notice that :"one cannot separate, I repeat, being from being, it is not possible to take hold of it objectively because in this way it is "des-realized"; but if being is not real, it is nothing. The intentional consideration of being is a quid pro quo. Being agrees with itself, but, being known intentionaliter is, as the Scholastics would say, an extrinsic denomination. When I know the idea, I do not in any way affect what I know, because the idea of what I know is in my mind as intelligible in act and in reality as intelligible in potency. The real distinction between essence and being makes the question all the more serious, because if being and essence were the same, then knowing something of the essence would be knowing something of being." (from the same interview, § 47). Polo describes his discovering in this way: i) "''A is A'', supposes A", and ii) "Thought being does not think". According to the first proposition, there is no intellectual increase in the reality of A when we think it objectively. Mental objects are invariably supposed. Following the tradition that comes from Medieval Philosophy, ''suppositio'' is the fact that the significative reference is not indefinite. In this way, the reference of A stops, because what is in the realm of the mind is A as an object. "A" is "already" thought, "A" is already "given", "there is already" A, "what is immediately open to a mental act is an object". That is the supposition of A. One can think more, better, but according to a new mental act. You cannot increase the intellection of A with the same act you have already thought. That act stops in A. The act does not prosecutes to new objectivity, in other words, a mental act always refers to an object, in which it ''stops''. According to this fact, says Polo, the
Kant Immanuel Kant (, , ; 22 April 1724 – 12 February 1804) was a German Philosophy, philosopher and one of the central Age of Enlightenment, Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemolo ...
ian Constructivist epistemology, constructivism of mental objects, and the
hegel Georg Wilhelm Friedrich Hegel (; ; 27 August 1770 – 14 November 1831) was a German philosopher. He is one of the most important figures in German idealism and one of the founding figures of modern Western philosophy. His influence extends a ...
ian
dialectic Dialectic ( grc-gre, διαλεκτική, ''dialektikḗ''; related to dialogue; german: Dialektik), also known as the dialectical method, is a discourse between two or more people holding different points of view about a subject but wishing ...
method are misguided attempts. The second sentence "Thought being does not think" explains a different meaning of the mental limit. While mental activity and objectivity are different, they are inseparable. Without the first one, there is no possibility of the second one: there is no way of finding an idea that could think itself. The intentionality of mental acts always refers to objects where it is impossible to find the known existence. This formulation involves a criticism to the subject-object
identity Identity may refer to: * Identity document * Identity (philosophy) * Identity (social science) * Identity (mathematics) Arts and entertainment Film and television * ''Identity'' (1987 film), an Iranian film * ''Identity'' (2003 film), ...
, and a rectification of
Heidegger Martin Heidegger (; ; 26 September 188926 May 1976) was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is among the most important and influential philosophers of the 20th centur ...
's
existentialism Existentialism ( ) is a form of philosophical inquiry that explores the problem of human existence and centers on human thinking, feeling, and acting. Existentialist thinkers frequently explore issues related to the meaning, purpose, and valu ...
. After two years of basic course work in philosophy, Polo received an opportunity to continue work in his research regarding the existential character of natural right with a research fellowship in Rome that he received from the ''Higher Council for Scientific Research'' (headed at that time by Alvaro D'Ors), which had just started a branch in Rome (the ''Spanish Juridical Institute'' in Rome). In Rome he had contact with eminent jurists like Del Vecchio and Capograssi. During these years in Rome (from the end of 1952 to September 1954), Leonardo Polo continued to develop the insight that he had received in 1950. A first phase of this involved the topic of his doctoral dissertation, "The existential character of Natural Right." However, posing the topic of the existential character of law required resolving a series of more fundamental questions, many of which were related to the intuition of 1950 and which became a long introduction that eventually became a work in itself and which would lead to his research away from the juridical sciences and more toward philosophy. Polo spent these Roman years reading, thinking intensely, and, above all, writing. German philosophy,
Kant Immanuel Kant (, , ; 22 April 1724 – 12 February 1804) was a German Philosophy, philosopher and one of the central Age of Enlightenment, Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemolo ...
and the German Romantics, as well as
Hegel Georg Wilhelm Friedrich Hegel (; ; 27 August 1770 – 14 November 1831) was a German philosopher. He is one of the most important figures in German idealism and one of the founding figures of modern Western philosophy. His influence extends a ...
and
Heidegger Martin Heidegger (; ; 26 September 188926 May 1976) was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is among the most important and influential philosophers of the 20th centur ...
, whom he had already known in his younger years, were a major focus of his study during this time. A result of the activity in Rome is a large volume titled ''The Real Distinction'', which he did not publish as such, but would later serve as a staging base for later publications. The formulations that Leonardo Polo had made with regard to his 1950 intuition became more consistent through the intellectual dialogue with the
Idealist In philosophy, the term idealism identifies and describes metaphysical perspectives which assert that reality is indistinguishable and inseparable from perception and understanding; that reality is a mental construct closely connected to ide ...
philosophers and with Heidegger's existentialism. For example, Polo's reading of Heidegger and of his concern for the "existent", his critic of idealism and his philosophical approach, would lead Polo to his characterization of the human persons as "being additionally" demás This ''being additionally'', which according to Polo Heidegger did not see, expresses that the human person is not limited to her thinking, nor even to her acting, but rather ''is additionally'' to thinking and action. To ''be additionally'' is "to open oneself intimately to be always constantly overflowing" (La libertad, doctoral course, Pamplona, 1990, pro manuscripto). In 1954, Polo returned from Rome and began working at the recently founded
University of Navarre , image = UNAV.svg , latin_name = Universitas Studiorum Navarrensis , established = 17 October 1952 , type = Private, Roman Catholic , chancellor = Fernando Ocáriz Braña , president = María Iraburu Eliz ...
, where he first taught ''Natural Law'' and then later (after the beginning of the School of Arts and Letters in 1956) ''Fundamentals of Philosophy'' and ''History of Philosophical Systems''. At the same time, he continued his studies of philosophy at the Central University in Madrid as an external student, since his work teaching at Navarre prevented him from attending class. Technical issues forced Polo to transfer his studies to the University of Barcelona. Here he finished a short research work on
Karl Marx Karl Heinrich Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, economist, historian, sociologist, political theorist, journalist, critic of political economy, and socialist revolutionary. His best-known titles are the 1848 ...
's anthropology under the direction of Jorge Pérez Ballestar. After receiving his degree from Barcelona in 1959, Polo transferred back to Madrid for the doctoral program and began work on his doctoral dissertation with Antonio Millán-Puelles. In 1961, Polo obtained a doctoral degree after presenting his dissertation on Descartes. In this work, he presents Descartes as a voluntarist, something uncommon at the time for Spanish academic circles, who considered Descartes more as a rationalist. This dissertation was prepared for publication and appear under the title "Evidencia y realidad en Descartes" (''Evidence and Reality in Descartes'') in 1963. At this time, as preparation for his application for academic positions at universities, Polo prepared a series of publications base on the thick volume ''The Real Distinction'', which he had written in Rome. Fruit of this work were ''El accesso al ser'' (''The Access to Being'') and ''El ser I'' (''Being I''), published in 1964 and 1966, respectively.


Years of silence (1966–1982)

Polo's first two books were, unfortunately, widely misunderstood in Spanish intellectual circles. Few were able to understand the complexity of the thematic and methodical dimensions of his proposal and its technical vocabulary. His assertion that freedom is a personal transcendental was also misunderstood. In doing so, some thought that Polo was a thinker on the Hegelian tradition. Of the four thematic areas which he thought had become available when overcoming our mental limits, Polo only wrote about the first ("Being I: Extramental Existence"). The original plan consisted of four parts: "Being II" would have studied the extramental essence (analysis of the persistence of extramental being in four predicamentales causes); "Being III" would have studied the being of human person, and "Being IV" would have dealt with the essence of man. Nevertheless, he remained silent for fifteen years and did not publish anything aside from a couple of papers. These are years of intense study and exchanges with colleagues. Polo taught at the University of Granada for two years (1966-1968). After that he moved back to the University of Navarra, where in 1972 he extensively revised Being III and Being IV, writing a new version of his Philosophical Anthropology, which also remained unpublished. From 1978 he started teaching in universities of South and Central America every year. Polo understood that for those countries education was a means of finding a way out of poverty, mainly because without division of labour, which is central to any modern society, education becomes impossible. Hence he promoted research and high standards in teaching in every university of South and Central America which he visited. Universities that he more frequently visited include
Universidad Panamericana The Universidad Panamericana (Spanish: ''Universidad Panamericana''), commonly known as UP, is a private Catholic university founded in Mexico City. It has four campuses: the main Mixcoac campus in the Benito Juarez borough of south-western Mexi ...
in Mexico, Universidad de Piura in Peru, and Universidad de la Sabana in Colombia.


Years of maturity (from 1982 to his death in 2013)

In 1982 Polo broke his silence in a paper called "The intellectual and the intelligible". There he makes explicit the Aristotelian roots of his proposal, highlighting the continuity of his philosophy with the Aristotelian tradition. He saw it as a "continuation of the study of knowledge just at the stage in which Aristotle left it". To that aim he set out to write his ''Theory of Knowledge'' in 5 volumes, the last two of which correspond to Being II. In 1999 and 2003 he published his third and definitive work on philosophical anthropology (the former Being III and IV from 1972, and the old "Real Distinction" from 1952 being the previous versions), which came to light under the title ''Transcendental Anthropology'' I (1999) and II (2003). These years of maturity have seen the publication of more than twenty books in a varied range of topics. Polo continued working in Pamplona (Spain) until his death in 2013. Different universities and institutions worldwide (like the "Institute of Philosophical Studies 'Leonardo Polo'" in Málaga (Spain)) have organized meetings and symposia about his thought, and research is conducted and being spread to the present throughout books and articles which find their inspiration in his work.


Works

His most important works are: ''Evidencia y realidad en Descartes'' (Evidence and Reality in Descartes), published in 1963, ''El acceso al ser,'' (Access to Being), in 1964, ''El ser I: La existencia extramental'' (Being I: Extramental Existence), in 1966, ''Curso de Teoría del Conocimiento,'' (Course of Theory of Knowledge), published in four volumes between 1984 and 1996), ''Hegel y el posthegelianismo'' (Hegel and Posthegelianism), in 1985, ''Antropología Trascendental I: La persona humana'' (Transcendental Anthropology I: Human Person), in 1999 and ''Antropología transcendental II: la esencia del hombre'' (Transcendental Anthropology II: Human Essence) in 2003.


''El acceso al ser''

This book expounds Polo's metaphysical method. Aristotle considered metaphysics the highest possible science because it deals with being, which is the ultimate constituent of everything. Modern metaphysicians, such as Descartes and Kant, understood that many of the pitfalls of metaphysics were caused by the lack of a rigorous method. Polo is sympathetic with Descartes and Kant about the need for such a method, but reflects that in metaphysics the method has to take us to grasp the being or existence of entities as such. If instead of that, our method leaves unresolved the question 'what is being?', its achievements will lead to perplexity. For Polo, such is the situation of Modern metaphysicians. When perplexed, the metaphysician finds himself in an awkward position, for he becomes blind to his own cognitive limits, and consequently has to put up with the suspicion that something in his system is missing without knowing exactly what. Polo's response to perplexity gravitates on the need to overcome such limits. His method consists in acknowledging such limits without denying them. To take thinking to its limit is the only way in which this can be detected and laid bare for scrutiny. Only in that way such limits will become apparent to the philosopher. The task of ''El acceso al ser'' is to illuminate the mind's cognitive limits for knowing in such a way that these can be effectively overcome. He calls this method 'the abandonment of mental limit'. With this a new and unsuspected perspective opens up. Being does not appear as perplexical as it might have appeared to philosophers like Hegel. The abandonment of the limit exposes the being of the universe as it is. This can be seen, on the one hand, as a kind of ''persistence''; on the other, as a principle of continuity which provides the basis for the principle of non-contradiction. But looking at the universe one does not know why things ''are'' in the first place or why it exists. The reason is that the universe depends on a different principle called ''identity'', and which is essentially God. Disconnect the world with that identity, and a large part of reality will lose its sense, for there is a third principle, the so-called ''transcendental causality'' which links up persistence and identity by placing the latter as creator of the former. In this way, Polo thinks that ''Access to Being'' brings metaphysics back in its right historical track. Some medievals, and particularly Aquinas, conceived being as a transcendental, non-reducible notion. This method looks to do justice to their views.


''Curso de Teoría del Conocimiento''

This book is based on transcripts taken from the epistemology lectures which Polo delivered in the University of Navarra throughout the 80s, and that he corrected later on. The work contents are carefully distributed in four volumes, the last of which is divided in two parts. They are a much later and mature work in which Polo brings his discoveries in line with Aristotle's philosophy and systematises his views for the first time. Starting from perceptual knowledge, it discusses internal faculties such as
imagination Imagination is the production or simulation of novel objects, sensations, and ideas in the mind without any immediate input of the senses. Stefan Szczelkun characterises it as the forming of experiences in one's mind, which can be re-creations ...
, the abstraction and the following steps to the highest
cognitive Cognition refers to "the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, ...
level, which is rational knowledge. As part of his concern for the method, Polo formulates a number of axioms which specify what is a cognitive act. The first and most relevant of these is the 'axiom of the act', which establishes that knowledge is active, as a consequence of which knowledge is an intentional and perfect act. Knowledge secures that character over real and constitutive existing acts such as those constituting a planet or a tiny virus. Knowledge, following Aristotle, is ''energeia'' or perfect act which in itself does not consist in any kind of substance, nor fits into the categories of space and time, as all existing objects do (see Aristotle's theory of potentiality and actuality). Polo devises an epistemic difference between operations and habits of the mind. Habits are powerful cognitive acts which bring particular insights into real objects, whereas operations analyse and exploit the cognitive achievement of habits in successive stages as much as they can. As operations come to an end, only further habits can bring new light to them. In this way, the distinction between them grows bigger and more articulated the further the we progress beyond perceptual knowledge. Habits are a direct exercise of the abandonment of the limit. While we all use some of them in ordinary life, i.e. so to be able to speak, not every one makes use of the highest available habits, which according to Polo illuminate unprecedented problems of philosophy such as the nature of first principles as examined in ''El acceso al ser''. Yet habits are sustained by a good many operations. The distinction between operations and habits runs across all cognitive faculties and helps to bring concepts, linguistic and numerical abilities and judgements into a new light, out of which we know, i.e. that after the first abstracted object the path of reasoning faces a junction: it can either 'generalise', to organise
abstract object In metaphysics, the distinction between abstract and concrete refers to a divide between two types of entities. Many philosophers hold that this difference has fundamental metaphysical significance. Examples of concrete objects include plants, hum ...
s into families, as we do in any classification of items into categories and subcategories, or it can follow a 'rational' path, exploring thus the promising connection between concepts and reality in order to make a judgement upon the universal or particular nature of a thing. Polo not only gives evidence of his views by discussing rival theories; he contrasts his views with that of Kant, Hegel and Heidegger. Kant's epistemology, while succeeding in systematising knowledge, presents perceptual knowledge as passive and so fails to comply with the requirements of axiom A, which asserts that knowledge is active. For Kant: :"perceptual knowledge is passive and yet the intellect is active. But if the intellect is active and perception is passive, the relation between both, if active, must be transitive. A transitive movement has suddenly crept into knowledge (...) as a kind of ''actio in passo'', something which for Aristotle is paradigmatic of a physical action" (2nd ed. 1987, 70-1). Similarly, the second volume of Polo's epistemology discusses a good deal of the concept of abstract objects for Heidegger, whereas the last volume explores the philosophical basis of 20th century physics.


Transcendental Anthropology

Polo had expressed in private conversations that his voluminous ''Theory of Knowledge'' had shed much light into his method, but that his work would be incomplete if he were not to canvass the habits which yield knowledge of the human essence and its singular act of being. That is precisely the core of his Transcendental Anthropology ''(Antropología Trascendental)'', a science he believes is a transcendental philosophy of man – not taking 'transcendental' as synonym with ''a priori'' and opposed to 'empirical', as Kant would have taken it, but signifying the primacy of persons' being -. Polo believes that throughout the centuries philosophical anthropology has been trumped by metaphysics. Say that metaphysics concerns the study of the universe and that philosophical anthropology focus on man. If we take man to be a bare metaphysical being in the sense in which
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of phil ...
,
Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wit ...
and some other medieval philosophers considered and defined it as a 'rational substance', we will find extremely hard to explain
free will Free will is the capacity of agents to choose between different possible courses of action unimpeded. Free will is closely linked to the concepts of moral responsibility, praise, culpability, sin, and other judgements which apply only to actio ...
. For the notion of substance is intrinsically tied up to metaphysical necessity, so that its substance can be characterised as being ''per se'' or needing not the input of any other to subsist. Of course that does not imply that the being of that substance is absolutely necessary, because no creature can cause itself to be. Human freedom, however, is incompatible with necessity. Modern philosophers understood it only too well when they asserted that man's essence consisted in spontaneity. This is certainly a feature of free will. In any choice, I may be bound by a limited number of alternatives on offer, but at the crucial point I am totally free to choose any of the alternatives regardless of my own inclinations. Freedom awaits us in any act of choice manifesting the radical openness of the will. For Polo, 'various distinctions must be settled in the first transcendental, that is, in the act of being ''(esse) (I, p. 69). It is a mistake to call man 'free' once it has being called a 'substance', be it rational or not, for man is not a free-willed substance but a free-willed being. Thus, the distinction between the universe and man needs to be scaled up so as to work on a transcendental order. Human beings are different from comets, plants and animals not in external or accidental features, but at the level of what
Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wit ...
would call ''actus essendi'' (act of being). For Polo, the difference between the universe and man is this: Man is a co-being which co-exists with other co-existences. Man is the being existentially open to other acts of being: it co-exists with the being of the universe, with other human persons and, most importantly, with God. In its openness to others lies the dual character of its being, which makes the existence of a lonely person a metaphysical absurdity. The ontological limits of a person do not have the sharper edges of other creatures’ beings. We conceive degrees of perfection in instruments such as a boiler depending on a variety of reasons, i.e. on how it fulfils or achieves some desirable purpose for which the instrument was crafted. A similar thing can be said of animals, in what they add up to sustaining biological life. The human being is equally open to perfection, but that increase, which is equally ruled by some purpose, is inherent to its act of being. Inasmuch as human beings co-exist with other co-beings, and especially with God, free will can grow. Thus Polo conceives freedom not as sheer spontaneity, autonomous independence or lack of physical and psychological constraints, but in a new an unexpected sense: as being radically open to other beings. We may be tempted to think that a person’s relation with God is strictly causal, but that is only the case of the universe which in ''Access to Being'' was characterised as ''persistence''. A person's unique dependence on God is the root of her freedom and hence, of an inward openness built on self-knowledge and self-giving. The person's call to openness is at the same time a call to be ontologically ever-more, that is, to be more human in accord with the moral, ethical, and practical implications of what is a 'good' person by nature, and which can only be found in an Aristotelian, non-utilitarian frame of objective values. Polo proposes that 'openness', 'freedom', 'intellection' and 'love' are "human transcendentals." This means that there can only be a human being when these four properties are in place, although the number of these human transcendentals is not restricted to these four. What is important is that human transcendentals allow an anonymous being to co-exist and to be recognised among other co-existences like her. In this way, Polo overturns the classic doctrine of transcendentals, for which properties such as 'being', 'one', 'truth', 'good' and 'beauty' are universal and all-embracing, including human beings. But he argues that since persons are able to actively acquire those intrinsically static qualities and be intimately transformed by their achievement, human transcendentals substantially differ from the classic set of transcendentals.


References

This list of works on the philosophy of Leonardo Polo is based on the bibliographical work of Prof. Juan A. García

( Málaga University) who has research on this matter for the Institute of Philosophical Studies "Leonardo Polo"br>


Books about Polo

1. Balibrea, Miguel Angel: El argumento ontológico de Descartes. La crítica de Leonardo Polo a la prueba cartesiana. Cuadernos del Anuario filosófico, serie universitaria, nº 106. Pamplona: Universidad de Navarra 2000; 102 pp. 2. Balibrea, Miguel Angel: La realidad del máximo pensable. La crítica de Leonardo Polo al argumento de San Anselmo. Cuadernos del Anuario filosófico, serie universitaria, nº 98. Pamplona: Universidad de Navarra 2000; 117 pp. 3. Catanzaro, Gianfranco: El hombre, ¿Un Objeto material o un ser trascendental?: Un recorrido Antropológico a través de la Filosofía de Friedrich Nietzsche y Leonardo Polo, Create Space: Estados Unidos 2012; 128 pp. 4. Collado, Santiago: Noción de hábito en la teoría del conocimiento de Polo. Publicaciones de la facultad de filosofía y letras de la universidad de Navarra, colección filosófica nº 159. Pamplona: Eunsa, 2000; 370 pp. 5. Esquer Gallardo, Héctor: El límite del pensamiento. La propuesta metódica de Leonardo Polo. Publicaciones de la facultad de filosofía y letras de la universidad de Navarra, colección filosófica nº 161. Pamplona: Eunsa 2000; 233 pp. (Puede acquirirlo por internet) 6. García González, Juan A.: Principio sin continuación. Escritos sobre la metafísica de Leonardo Polo. Colección Estudios y ensayos, nº 25. Málaga: Universidad de Málaga, 1998; 228 pp. Según se indica en la p. 10, incluye once estudios sobre Polo, de los cuales nueve previamente editados (Puede acquirirlo por internet) 7. García González, Juan A.: Y además. Escritos sobre la antropología trascendental de Leonardo Polo. San Sebastián: Delta 2008. 8. García Valdecasas, Miguel: Límite e identidad. La culminación de la filosofía en Hegel y Polo. Cuadernos del Anuario filosófico, serie de filosofía española, nº 6. Pamplona: Universidad de Navarra, 1998; 106 pp. 9. González Ginocchio, David: El acto de conocer. Antecedentes aristotélicos de Leonardo Polo. Cuadernos del Anuario filosófico, serie universitaria, nº 183. Pamplona: Universidad de Navarra, 2005; 128 pp. 10. González Umeres, Luz: Imaginación, memoria y tiempo. Contrastes entre Bergson y Polo. Cuadernos del Anuario filosófico, serie universitaria, nº 185. Pamplona: Universidad de Navarra, 2006; 114 pp. 11. González Umeres, Luz: La experiencia del tiempo humano. De Bergson a Polo. Cuadernos del Anuario filosófico, serie universitaria, nº 134. Pamplona: Universidad de Navarra, 2001; 104 pp. 12. Padial, Juan José: La antropología del tener según Leonardo Polo. Cuadernos del Anuario filosófico, serie universitaria, nº 100. Pamplona: Universidad de Navarra, 2000; 146 pp. 13. Piá Tarazona, Salvador: El hombre como ser dual. Estudio de las dualidades radicales según la "Antropología Trascendental" de Leonardo Polo. Publicaciones de la facultad de filosofía y letras de la universidad de Navarra, colección filosófica nº 166. Pamplona: Eunsa, 2001; 478 pp. (Puede acquirirlo por internet) 14. Piá Tarazona, Salvador: Los primeros principios en Leonardo Polo. Cuadernos del Anuario filosófico, serie de filosofía española, nº 2. Pamplona: Universidad de Navarra, 1997; 108 pp. 15. Posada, Jorge Mario: La física de causas en Leonardo Polo. Publicaciones de la facultad de filosofía y letras de la universidad de Navarra, colección filosófica nº 102. Pamplona: Eunsa, 1996; 487 pp. (Puede acquirirlo por internet) 16. Posada, Jorge Mario: Voluntad de poder y poder de la voluntad. Una glosa a la propuesta antropológica de Leonardo Polo a la vista de la averiguación nietzscheana. Cuadernos del Anuario filosófico, serie universitaria, nº 173. Pamplona: Universidad de Navarra, 2004; 80 pp. 17. Sellés, Juan Fernando: El conocer personal. Estudio del entendimiento agente según Polo. Cuadernos del Anuario filosófico, serie universitaria, nº 163. Pamplona: Universidad de Navarra, 2003; 169 pp.


Papers


Journals

1. Journa
STUDIA POLIANA
Pamplona: Universidad de Navarra. Periodicity annual 2. On line Journa
MISCELÁNEA POLIANA
edited by the Institute of Philosophical Studies "Leonardo Polo"

3. VV. AA.: Actas del Congreso internacional sobre el pensamiento de Leonardo Polo (Pamplona 25–7.XI.1996).
Anuario Filosófico ''Anuario Filosófico'' is a triannual peer-reviewed academic journal of philosophy. It was established in 1968 and is published by the Philosophy Department of the University of Navarra in Spanish. The editor-in-chief An editor-in-chief (EIC), ...
, Pamplona 29-2 (1996) 291–1120. with 52 studies

(see the number and the abstract). 4. VV. AA.: special number of
Anuario Filosófico ''Anuario Filosófico'' is a triannual peer-reviewed academic journal of philosophy. It was established in 1968 and is published by the Philosophy Department of the University of Navarra in Spanish. The editor-in-chief An editor-in-chief (EIC), ...
, Pamplona 25-1 (1992): 9–251; with 11 studies

(see the number and the abstract).


Chapters of books

1. Falgueras-García González-Padial (coords.): Futurizar el presente. Estudios sobre la filosofía de Leonardo Polo. Málaga: Universidad de Málaga 2003; 350 pp. with 19 studies): - Prólogo: futurizar el presente (I. Falgueras), - ¿Advertencia o concepto de existencia? (R. Corazón), - El carácter futurizante del entendimiento agente según Polo (J. F. Sellés) - El crecimiento de la vida humana. La temporalidad y el futuro en la antropología poliana (G. Castillo), - El problema de la moción divina (E. Forment), - El problema del fundamento en Apel y Polo... (C. Ortiz de Landázuri), - Entre filosofía y genética. Aportaciones de Polo al diálogo interdisciplinar en torno al alma humana (C. Martínez Priego) - Intencionalidad del conocer versus intencionalidad del querer (U. Ferrer), - La doctrina del acto de ser en Polo... (S. Piá), - La experiencia de la libertad: Bergson-Polo (L. González Umeres) - La fenomenología desde la perspectiva del abandono del límite (F. Haya), - La índole intellectual de la voluntad y lo voluntario... (J.M. Posada e I. García), - Nociones básicas de la filosofía en Polo (J. García), - Realismo trascendental (I. Falgueras), - Sindéresis y voluntad. ¿Quién mueve a la voluntad? (F. Molina), - Sobre la constancia de la presencia mental y la congruencia de la reflexión cognoscitiva (J. Padial)] 2. Falgueras-García González-Yepes: El pensamiento de Leonardo Polo. Simposio sobre el pensamiento de Leonardo Polo (Pamplona 5–6.XI.1993). Cuadernos del Anuario filosófico, nº 11. Pamplona: Universidad de Navarra 1994; 84 pp.: - El abandono del límite y el conocimiento (J. García), - La atropología trascendental de Leonardo Polo (R. Yepes), - Leonardo Polo ante la filosofía clásica y moderna (I. Falgueras)] 3. Falgueras-González-González Enciso-Yepes: Academic Act in honour of Professor Leonardo Polo. Pamplona: Facultad de Filosofía y Letras of the University of Navarre, 27.XI.1996; 57 pp. Published in Miscelánea poliana, nº 1 (2005), y Studia poliana, Pamplona 8 (2006) 13–42. 4. Falgueras-García González-Padial-Sellés: Preparatory Materials for the Internet Congress in order to comment "El acceso al ser" from Leonardo Polo. Digitally edited. IEFLP, Málaga 2005.


References


External links


Leonardo Polo Institute of PhilosophyWeb focussed on the philosophy of Leonardo Polo in the Anthology of Hispanic Essay of the University of Georgia (USA)


* ttp://www.philosophybooks.info/ Books reviews on several books of Leonardo Polo {{DEFAULTSORT:Polo, Leonardo 1926 births 2013 deaths 20th-century Spanish philosophers Spanish philosophers Catholic philosophers Complutense University of Madrid alumni Academic staff of the Panamerican University Academic staff of the University of Navarra Academic staff of the University of Granada Academic staff of the University of Piura Opus Dei members