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Observations On Man
''Observations on Man, his Frame, his Duty, and his Expectations'' is 18th-century British philosopher David Hartley's major work. Published in two parts in 1749 by Samuel Richardson, it puts forth Hartley's principal theories: the doctrine of vibrations and the doctrine of associations. The first part of the text deals with the frame of the human body and mind, and their mutual connections and influences, the second with the duty and expectations of mankind. Intellectual background Hartley's physical theory was drawn from certain speculations as to nervous action which Isaac Newton had published in his '' Principia'' (1687). Elements of Hartley's psychological theory were suggested by other writers, such as John Gay. For example, "in Hartley's theory, emotion is a fluid like electricity or water"—it flows from one experience to the next, a concept he called ''transference'' and lifted from the writings of Gay. Although Hartley acknowledges that Gay "put me upon considering the ...
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David Hartley (philosopher)
David Hartley (; baptized 21 June 1705 Old Style; died 28 August 1757) was an English philosopher and founder of the Associationist school of psychology. Early life and family history David Hartley was born in 1705 in the vicinity of Halifax, Yorkshire. His mother died three months after his birth. His father, an Anglican clergyman, died when David was fifteen. Hartley was educated at Bradford Grammar School and in 1722 was admitted as a Sizar to Jesus College, Cambridge. He received his BA in 1726 and MA in 1729. In April 1730 he became the first layperson to be Master of Magnus Grammar School ( Magnus Church of England Academy), Newark, and it was there that he began to practice medicine. On 21 April 1730, Hartley married Alice Rowley (1705–31). The couple moved to Bury St Edmunds, and Alice died there giving birth to their son David Hartley (the Younger) (1731–1813). While in Bury, Hartley met his second wife, Elizabeth Packer (1713–78), the fifth child and only daught ...
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Samuel Richardson
Samuel Richardson (baptised 19 August 1689 – 4 July 1761) was an English writer and printer known for three epistolary novels: ''Pamela; or, Virtue Rewarded'' (1740), '' Clarissa: Or the History of a Young Lady'' (1748) and ''The History of Sir Charles Grandison'' (1753). He printed almost 500 works, including journals and magazines, working periodically with the London bookseller Andrew Millar. Richardson had been apprenticed to a printer, whose daughter he eventually married. He lost her along with their six children, but remarried and had six more children, of which four daughters reached adulthood, leaving no male heirs to continue the print shop. As it ran down, he wrote his first novel at the age of 51 and joined the admired writers of his day. Leading acquaintances included Samuel Johnson and Sarah Fielding, the physician and Behmenist George Cheyne, and the theologian and writer William Law, whose books he printed. At Law's request, Richardson printed some poems by J ...
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Isaac Newton
Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book (''Mathematical Principles of Natural Philosophy''), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus. In the , Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint for centuries until it was superseded by the theory of relativity. Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for ...
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Philosophiæ Naturalis Principia Mathematica
(English: ''Mathematical Principles of Natural Philosophy'') often referred to as simply the (), is a book by Isaac Newton that expounds Newton's laws of motion and his law of universal gravitation. The ''Principia'' is written in Latin and comprises three volumes, and was first published on 5 July 1687. The is considered one of the most important works in the history of science. The French mathematical physicist Alexis Clairaut assessed it in 1747: "The famous book of ''Mathematical Principles of Natural Philosophy'' marked the epoch of a great revolution in physics. The method followed by its illustrious author Sir Newton ... spread the light of mathematics on a science which up to then had remained in the darkness of conjectures and hypotheses." A more recent assessment has been that while acceptance of Newton's laws was not immediate, by the end of the century after publication in 1687, "no one could deny that" (out of the ) "a science had emerged that, at least in ce ...
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John Gay (philosopher)
John Gay (1699–1745), a cousin of the poet John Gay, was an English philosopher, biblical scholar and Church of England clergyman. The greatest happiness principle, Gay supposed, represented a middle ground between the egoism of Hobbes and Hutcheson's moral sense theory. Education Gay was educated at Torrington School and Blundell's School. In 1718 he was elected Blundell's Scholar at Sidney Sussex College at Cambridge, graduating B.A. in 1721/2 and M.A. in 1725. From 1724 to 1732 he was a Fellow of the College, lecturing in Hebrew, Greek, and ecclesiastical history. Philosophy Gay's philosophical works argued that virtue was conforming to a rule of life which promotes the happiness of others. His short "Dissertation concerning the Fundamental Principle of Virtue or Morality" was first published as a preface to Edmund Law's translation of William King's Latin Essay on the Origin of Evil (1731). (Law was Bishop of Carlisle and King was Archbishop of Dublin.) The "Dissertatio ...
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Association Of Ideas
Association of ideas, or mental association, is a process by which representations arise in consciousness, and also for a principle put forward by an important historical school of thinkers to account generally for the succession of mental phenomena. The term is now used mostly in the history of philosophy and of psychology. One idea was thought to follow another in consciousness if it were associated by some principle. The three commonly asserted principles of association were similarity, contiguity, and contrast, numerous others had been added by the nineteenth century. By the end of the nineteenth century physiological psychology Physiological psychology is a subdivision of behavioral neuroscience (biological psychology) that studies the neural mechanisms of perception and behavior through direct manipulation of the brains of nonhuman animal subjects in controlled experimen ... was so altering the approach to this subject that much of the older associationist theory was rejected. ...
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John Locke
John Locke (; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of Age of Enlightenment, Enlightenment thinkers and commonly known as the "father of liberalism". Considered one of the first of the British Empiricism, empiricists, following the tradition of Francis Bacon, Locke is equally important to social contract theory. His work greatly affected the development of epistemology and political philosophy. His writings influenced Voltaire and Jean-Jacques Rousseau, and many Scottish Enlightenment thinkers, as well as the American Revolutionaries. His contributions to classical republicanism and liberal theory are reflected in the United States Declaration of Independence. Internationally, Locke’s political-legal principles continue to have a profound influence on the theory and practice of limited representative government and the protection of basic rights and freedoms under the rule of law. ...
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Tabula Rasa
''Tabula rasa'' (; "blank slate") is the theory that individuals are born without built-in mental content, and therefore all knowledge comes from experience or perception. Epistemological proponents of ''tabula rasa'' disagree with the doctrine of innatism, which holds that the mind is born already in possession of certain knowledge. Proponents of the ''tabula rasa'' theory also favour the "nurture" side of the nature versus nurture debate when it comes to aspects of one's personality, social and emotional behaviour, knowledge, and sapience. Etymology ''Tabula rasa'' is a Latin phrase often translated as ''clean slate'' in English and originates from the Roman ''tabula'', a wax-covered tablet used for notes, which was blanked ('' rasa'') by heating the wax and then smoothing it. This roughly equates to the English term "blank slate" (or, more literally, "erased slate") which refers to the emptiness of a slate prior to it being written on with chalk. Both may be renewed repe ...
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Medulla Oblongata
The medulla oblongata or simply medulla is a long stem-like structure which makes up the lower part of the brainstem. It is anterior and partially inferior to the cerebellum. It is a cone-shaped neuronal mass responsible for autonomic (involuntary) functions, ranging from vomiting to sneezing. The medulla contains the cardiac, respiratory, vomiting and vasomotor centers, and therefore deals with the autonomic functions of breathing, heart rate and blood pressure as well as the sleep–wake cycle. During embryonic development, the medulla oblongata develops from the myelencephalon. The myelencephalon is a secondary vesicle which forms during the maturation of the rhombencephalon, also referred to as the hindbrain. The bulb is an archaic term for the medulla oblongata. In modern clinical usage, the word bulbar (as in bulbar palsy) is retained for terms that relate to the medulla oblongata, particularly in reference to medical conditions. The word bulbar can refer to the nerves ...
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Aether (classical Element)
According to ancient and medieval science, aether (, alternative spellings include ''æther'', ''aither'', and ''ether''), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity. In the late 19th century, physicists postulated that aether permeated all throughout space, providing a medium through which light could travel in a vacuum, but evidence for the presence of such a medium was not found in the Michelson–Morley experiment, and this result has been interpreted as meaning that no such luminiferous aether exists. Mythological origins The word (''aithḗr'') in Homeric Greek means "pure, fresh air" or "clear sky". In Greek mythology, it was thought to be the pure essence that the gods breathed, filling the space where they lived, analogous to the ''air'' breathed ...
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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 actions that are freely chosen. It is also connected with the concepts of advice, persuasion, deliberation, and prohibition. Traditionally, only actions that are freely willed are seen as deserving credit or blame. Whether free will exists, what it is and the implications of whether it exists or not are some of the longest running debates of philosophy and religion. Some conceive of free will as the right to act outside of external influences or wishes. Some conceive free will to be the capacity to make choices undetermined by past events. Determinism suggests that only one course of events is possible, which is inconsistent with a libertarian model of free will. Ancient Greek philosophy identified this issue, which remains a major focus o ...
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