No man can be fully efficient if he expects praise or appreciation for what he does.

The most difficult of enterprises is to secure the cooperation of others in enterprises those others did not think of first.

It was a symptom of the insanity of human beings in a cosmos obviously designed for them to live in, but which they industriously prepare to make unlivable.

The secret of getting along with people is that of postponing quarrels.

It isn't illegal to buy an artist's work for peanuts and sell it again at any price one can get. But it is an outrage!

Adventure is the point where you toss your life on the scales of chance and wait for the pointer to stop.

Children and barbarians have clear ideas of justice due to them, but no idea at all of justice due from them.