“The progress of science is strewn, like an ancient desert trail, with the bleached skeleton of discarded theories which once seemed to possess eternal life.”
Other Arthur Koestler Quotes
Creative activity could be described as a type of learning process where teacher and pupil are located in the same individual.
Arthur Koestler 
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Courage is never to let your actions be influenced by your fears.
Arthur Koestler
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A writer's ambition should be to trade a hundred contemporary readers for ten readers in ten years' time and for one reader in a hundred years' time.
Arthur Koestler
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Scientists are peeping toms at the keyhole of eternity.
Arthur Koestler
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