Years wrinkle the face, but to give up enthusiasm wrinkles the soul.

The soul would have no rainbow, if the eyes had no tears.

Men are mortal, but ideas are immortal.

Thedifficult part in an argument is not to defend one's opinion, but rather toknow it.

Talkingmuch about oneself may be a way of hiding oneself.

The mostintense conflicts, if overcome, leave behind a sense of security and calmthat is not easily disturbed. It is just these intense conflicts and theirconflagration which are needed to produce valuable and lasting results.

Never trust the advice of a man in difficulties.

To sit alone in the lamp light with a book spread out before you-such is a pleasure beyond compare.

If you could kick the person in the pants responsible for most of your trouble, youwouldn't sit for a month.

Thegalleries are full of critics. They play no ball, they fight no fights. Theymake no mistakes because they attempt nothing. Down in the arena are thedoers. They make mistakes because they try many things. The man who makes nomistakes lacks boldness and

A teacher as a person is more important than a teacher as a technician. What he is has more effect than anything he does.

A man may die, nations may rise and fall, but an idea lives Ideas have endurance without death.