Somebody once asked Niels Bohr why he had a horseshoe hanging above the front door of his house. Surely you, a world famous physicist, can't really believe that hanging a horseshoe above your door brings you luck? Of course not, Bohr replied, but I have been reliably informed that it will bring me luck whether I believe in it or not.

To sell oneself for thirty pieces of silver is an honest transaction; but to sell oneself to one s own conscience is to abandon mankind.

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

The jester is brother to the sage.

Courage is never to let your actions be influenced by your fears.

Honor is decency without vanity.

Laughter and weeping, the Greek masks of comedy and tragedy, mark the extremes of a continuous spectrum; both provide channels for the overflow of emotion; both are