Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Do not look for a sanctuary in anyone except yourself.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.

A clever person solves a problem. A wise person avoids it.

If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.