You can be erudite with knowledge of others; you can be wise only with your wisdom.

The wise man reads both books and life itself.

The thoughts that come often unsought, and as it were, drop into the mind, are commonly the most valuable of any we have.

People whoare too concerned with how well they are doing will be less successful andfeel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation, or between extrinsicand intrinsic motivation...

Ignorance is a bold, and knowledge reserved

One cannot be precise and still be pure.

Do good to your friend to keep him, and to your enemy to make him your freind.

We think too small. Like the frog at the bottom of the well. He thinks the sky is only as big as the top of the well. If he surfaced, he would have an entirely different view.

you cannot build character and courage by taking away man's initiatives and independence.

An expert is a man, who dosent has all the answers, but he is sure that if that he is given enough money he can find them.

History is the witness of the times, the light of truth.

Any man's death diminishes me, because i am involved in mankind; and, therefore, never tend to know for whom the bell tolls. It tolls for thee.