Religion is a culture of faith; science is a culture of doubt.

I learned from her that every woman is worried about her looks, no matter how beautiful she is.

There is no harm in doubt and skepticism, for it is through these that new discoveries are made.

The real question of government versus private enterprise is argued on too philosophical and abstract a basis. Theoretically, planning may be good. But nobody has ever figured out the cause of government stupidity—and until they do (and find the cure), all ideal plans will fall into quicksand.

A great deal more is known than has been proved.

It is simple, therefore it is beautiful

There’s so much distance between the fundamental rules and the final phenomenon, that it’s almost unbelievable that the final variety of phenomenon can come from such a steady operation of such simple rules.