In the meantime, the educated public continues to believe that Darwin has provided all the relevant answers by the magic formula of random mutations plus natural selection -quite unaware of the fact that random mutations turned out to be irrelevant and natural selection tautology.

Newton's apple and Cezanne's apple are discoveries more closely related than they seem.

The moment of truth, the sudden emergence of a new insight, is an act of intuition. Such intuitions give the appearance of miraculous flushes, or short-circuits of reasoning. In fact they may be likened to an immersed chain, of which only the beginning and the end are visible above the surface of consciousness. The diver vanishes at one end of the chain and comes up at the other end, guided by invisible links.

One should either write ruthlessly what one believes to be the truth, or else shut up.

There is only one prospect worse than being chained to an intolerable existence: The nightmare of a botched attempt to end it.

The discoveries of yesterday are the truisms of tomorrow, because we can add to our knowledge but cannot subtract from it.

In creating the human brain, evolution has wildly overshot the mark.