Download e-book for iPad: Aristotle and Philoponus on Light by Jean De Groot

By Jean De Groot

ISBN-10: 1138937053

ISBN-13: 9781138937055

Originally released in 1991. Philoponus’ lengthy remark on Aristotle’s definition of sunshine units up the key issues, either in optics and idea of sunshine, which are mentioned the following. gentle was once of precise curiosity in Neoplatonism as a result of its being whatever incorporeal on the earth of typical our bodies. mild as a result had a unique function within the philosophical research of the interpenetration of our bodies and was once additionally a paradigm for the soul-body challenge. The publication includes a lot in regards to the body structure of imaginative and prescient in addition to the propagation of sunshine. a number of chapters examine the philosophical idea in the back of what got here to be referred to as ‘multiplication of species’ in medieval mild conception. those matters within the historical past of technological know-how are put inside an research of Neoplatonic improvement of the excellence among Aristotle’s kinesis and energeia. The publication treats Philoponus’ philosophy of mathematical technology from the perspective of topic, volume, and three-dimensionality.

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PR 47) In practice, the limitations placed upon the operations of this force by the conditions for maximal intensity of experience come to much the same as they had with Leibniz in the attempt to achieve the maximum of variety among monads compatible with unity. Generally speaking, an increase in discriminating sensitivity is achieved by the ingression of a 1 "The primordial created fact is the unconditioned conceptual valuation of the entire multiplicity of eternal objects. " (PR 46). 54 SPACE IN LEIBNIZ AND WHITEHEAD greater number of eternal objects into our experience, and is accompanied by a heightened intensity in our final satisfaction: The subjective aim, whereby there is origination of conceptual feeling, is intensity of feeling in the immediate subject and in the relevant future.

44 WILLIAM J AMES ON THE NATURE OF TIME J ames uses several different expressions for this concept of the present as a point in time: "strict present" and "actual present,"! "3 All such times, he argues, are abstractions. They are the flesh and blood of the paradoxes and antinomies of time, but they are lifeless in the real world of process and change. Their essence is that they are the hypothetical absolute crests of the waxingclimaxing-waning processes in nature. All real experience is voluminous and intense.

397. , p. 3 88. 1 2 WILLIAM JAMES ON THE NATURE OF TIME 45 atop that surface of inner rhythms. When the perception crests, wanes, and then lapses, the lapsing is also experienced against that background play of life's rhythmic forces. It is against this steady-state condition of indifferent equilibrium that particular budding 'nows' can be seen as beginning and ending. The contrast between relatively full time (due to the perception of external things) and relatively empty time (due to the rolling ground-swells of our latent inner environment) provides the basis for understanding James' two Laws of perceived time.

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Aristotle and Philoponus on Light by Jean De Groot

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