7491
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The phases of human thought are theological, then metaphysical, then positivist [Comte, by Watson]
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Full Idea:
The first phase of humanity was theological, attributing phenomena to a deity, the second metaphysical stage attributed them to abstract forms, the third positive stage abandons ultimate causes and just searches for regularities.
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From:
report of Auguste Comte (Course of Positive Philosophy [1846]) by Peter Watson - Ideas Ch.32
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A reaction:
This is obviously a highly empirical programme, which reasserts Hume's view of the laws of nature. Effectively, positivism just is the rejection of metaphysics.
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12709
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Motion is not absolute, but consists in relation [Leibniz]
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Full Idea:
In reality motion is not something absolute, but consists in relation.
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From:
Gottfried Leibniz (On Motion [1677], A6.4.1968), quoted by Daniel Garber - Leibniz:Body,Substance,Monad 3
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A reaction:
It is often thought that motion being relative was invented by Einstein, but Leibniz wholeheartedly embraced 'Galilean relativity', and refused to even consider any absolute concept of motion. Acceleration is a bit trickier than velocity.
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