"The world is not so much in need of new thoughts as that when thought grows old and worn with usage it should, like current coin, be called in, and, from the mint of genius, reissued fresh and new."

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The shrewd guess, the fertile hypothesis, the courageous leap to a tentative conclusion - these are the most valuable coins of the thinker at work. But in most schools guessing is heavily penalized and is associated somehow with laziness.

— Jerome Bruner