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Read through the most famous quotes by topic #validity
All science is experiential; but all experience must be related back to and derives its its validity from the conditions and context of consciousness in which it arises, i.e., the totality of our nature. ↗
The solution of the difficulty is that the two mental pictures which experiment lead us to form - the one of the particles, the other of the waves - are both incomplete and have only the validity of analogies which are accurate only in limiting cases. ↗
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I believe that history has shape, order, and meaning; that exceptional men, as much as economic forces, produce change; and that passe abstractions like beauty, nobility, and greatness have a shifting but continuing validity. ↗