The principle mark of genius is not perfection but originality, the opening of new frontiers.
Arthur Koestler
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Some of the greatest discoveries...consist mainly in the clearing away of psychological roadblocks which obstruct the approach to reality; which is why,post factum they appear so obvious.
- Arthur Koestler -
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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.
- Arthur Koestler