Actus Essendi
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Actus Essendi
''Actus essendi'' is a Latin expression coined by Saint Thomas Aquinas (1225–1274). Translated as "act of being", the is a fundamental metaphysical principle discovered by Aquinas when he was systematizing the Christian Neoplatonic interpretation of Aristotle. The metaphysical principle of relates to the revelation of God as He Who is (Ex 3:14), and to how we as humans perceive God’s essence. Aquinas elaborates on the fact that God’s essence is not perceived as sense data; rather, the essence of God can only be understood partially in terms of the limited participations in God’s , that is, in terms of what is real, in terms of God’s effects in the real world. Overview Aquinas saw that in any subsisting extramental (existing outside the mind) thing, one finds a couplet of metaphysical principles: one is the "essence" which makes the subsisting thing to be what it is, the other is the which gives the subsisting thing and its essence actual existence. The observation th ...
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Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italian region and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a highly inflected language, with three distinct genders (masculine, feminine, and neuter), six or seven noun cases (nominative, accusative, genitive, dative, ablative, and vocative), five declensions, four verb conjuga ...
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Saint 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 within the tradition as the , the , and the . The name ''Aquinas'' identifies his ancestral origins in the county of Aquino in present-day Lazio, Italy. Among other things, he was a prominent proponent of natural theology and the father of a school of thought (encompassing both theology and philosophy) known as Thomism. He argued that God is the source of both the light of natural reason and the light of faith. He has been described as "the most influential thinker of the medieval period" and "the greatest of the medieval philosopher-theologians". His influence on Western thought is considerable, and much of modern philosophy is derived from his ideas, particularly in the areas of ethics, natural law, metaphysics, and political theory. U ...
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Metaphysical
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 consciousness and the relationship between mind and matter, between substance and attribute, and between potentiality and actuality. The word "metaphysics" comes from two Greek words that, together, literally mean "after or behind or among he study ofthe natural". It has been suggested that the term might have been coined by a first century CE editor who assembled various small selections of Aristotle's works into the treatise we now know by the name ''Metaphysics'' (μετὰ τὰ φυσικά, ''meta ta physika'', 'after the ''Physics'' ', another of Aristotle's works). Metaphysics studies questions related to what it is for something to exist and what types of existence there are. Metaphysics seeks to answer, in an abstract and fu ...
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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 philosophy within the Lyceum and the wider Aristotelian tradition. His writings cover many subjects including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, meteorology, geology, and government. Aristotle provided a complex synthesis of the various philosophies existing prior to him. It was above all from his teachings that the West inherited its intellectual lexicon, as well as problems and methods of inquiry. As a result, his philosophy has exerted a unique influence on almost every form of knowledge in the West and it continues to be a subject of contemporary philosophical discussion. Little is known about his life. Aristotle was born in th ...
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Postulate
An axiom, postulate, or assumption is a statement that is taken to be true, to serve as a premise or starting point for further reasoning and arguments. The word comes from the Ancient Greek word (), meaning 'that which is thought worthy or fit' or 'that which commends itself as evident'. The term has subtle differences in definition when used in the context of different fields of study. As defined in classic philosophy, an axiom is a statement that is so evident or well-established, that it is accepted without controversy or question. As used in modern logic, an axiom is a premise or starting point for reasoning. As used in mathematics, the term ''axiom'' is used in two related but distinguishable senses: "logical axioms" and "non-logical axioms". Logical axioms are usually statements that are taken to be true within the system of logic they define and are often shown in symbolic form (e.g., (''A'' and ''B'') implies ''A''), while non-logical axioms (e.g., ) are actually ...
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Pope John Paul II
Pope John Paul II ( la, Ioannes Paulus II; it, Giovanni Paolo II; pl, Jan Paweł II; born Karol Józef Wojtyła ; 18 May 19202 April 2005) was the head of the Catholic Church and sovereign of the Vatican City State from 1978 until his death in April 2005, and was later canonised as Pope Saint John Paul II. He was elected pope by the second papal conclave of 1978, which was called after John Paul I, who had been elected in August to succeed Pope Paul VI, died after 33 days. Cardinal Wojtyła was elected on the third day of the conclave and adopted the name of his predecessor in tribute to him. Born in Poland, John Paul II was the first non-Italian pope since Adrian VI in the 16th century and the second-longest-serving pope after Pius IX in modern history. John Paul II attempted to improve the Catholic Church's relations with Judaism, Islam, and the Eastern Orthodox Church. He maintained the church's previous positions on such matters as abortion, artificia ...
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Pontifical University Of Saint Thomas Aquinas
A pontifical ( la, pontificale) is a Christian liturgical book containing the Christian liturgy, liturgies that only a bishop may perform. Among the liturgies are those of the ordinal (liturgy), ordinal for the ordination and consecration of deacons, priests, and bishops to Holy Orders. While the ''Roman Pontifical'' and closely related ''Caeremoniale Episcoporum, Ceremonial of Bishops'' of the Roman Rite are the most common, pontificals exist in other liturgical traditions. History Pontificals in Latin Church, Latin Christianity first developed from sacramentary, sacramentaries by the 8th century. Besides containing the texts of exclusively bishop, episcopal liturgies such as the Pontifical High Mass, liturgies that other clergymen could celebrate were also present. The contents varied throughout the Middle Ages, but eventually a pontifical only contained those liturgies a bishop could perform. The ''Pontificale Egberti'', a pontifical that once belonged to and was perhaps auth ...
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Actus Purus
In scholastic philosophy, ''Actus Purus'' (English: "Pure Actuality," "Pure Act") is the absolute perfection of God. Overview Created beings have potentiality that is not actuality, imperfections as well as perfection. Only God is simultaneously all that He can be, infinitely real and infinitely perfect: ' I am who I am' (Exodus ). His attributes or His operations are really identical with His essence, and His essence necessitates His existence. (Contrast this understanding with the Essence–Energies distinction in Eastern Christian, particularly Palamite, theology). In created beings, the state of potentiality precedes that of actuality; before being realized, a perfection must be capable of realization. But, absolutely speaking, actuality precedes potentiality. For in order to change, a thing must be acted upon, or actualized; change and potentiality presuppose, therefore, a being which is '' in actu''. This actuality, if mixed with potentiality, presupposes another actual ...
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Thomism
Thomism is the philosophical and theological school that arose as a legacy of the work and thought of Thomas Aquinas (1225–1274), the Dominican philosopher, theologian, and Doctor of the Church. In philosophy, Aquinas' disputed questions and commentaries on Aristotle are perhaps his best-known works. In theology, his ''Summa Theologica'' is amongst the most influential documents in medieval theology and continues to be the central point of reference for the philosophy and theology of the Catholic Church. In the 1914 motu proprio ''Doctoris Angelici'', Pope Pius X cautioned that the teachings of the Church cannot be understood without the basic philosophical underpinnings of Aquinas' major theses: Overview Thomas Aquinas held and practiced the principle that truth is to be accepted no matter where it is found. His doctrines drew from Greek, Roman, Islamic and Jewish philosophers. Specifically, he was a realist (i.e. unlike skeptics, he believed that the world can be ...
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