Men are mortal, but ideas are immortal.

Man must not check reason by tradition, but must check tradition by reason.

To copy is to put an end to creativeness. Unless there is originality, you can do nothing.

All marriedcouples should learn the art of battle as they should learn the art of makinglove. Good battle is objective and honest never vicious or cruel. Good battleis healthy and constructive, and brings to a marriage the principle of equalpartnership.

Saying nothing... sometimes says the most.

A shipin harbor is safe, but that is not what ships arebuilt for.

My fathersaid: you must never try to make all the money that's in a deal. Let theother fellow make some money too, because if you have a reputation for alwaysmaking all the money, you won't have many deals.

You only have power over people so long as you don't takeeverything away from them. But when you've robbed a man of everything he's nolonger in your power he's free again.

A manshould never be ashamed to own he has been in the wrong, which is but saying,in other words, that he is wiser today than he was yesterday.

Prejudice is a disease characterised by hardening of categories.

True youth is a quality which is acquired only with age.

Too late is the medicine prepared, when the disease has strengthened by long delay.