The only rule in art is that there are no rules.

Pity, or compassion, is an emotion equally natural to all men.

The best way to get out of a situation is to never get into it in the first place.

The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.

The quality of an organization's ethics determines the quality of its decisions.

The Hebrews have done more to civilize men than any other nation.

数学的本质在于它的自由。