Each thought becomes an anxiety in my brain. I am becoming the ugliest of all things: a busy man.

Work and struggle and never accept an evil that you can change.

When intelligent people pride themselves on not understanding, it is quite natural they should succeed better than fools.

Believe those who seek the truth, doubt those who find it; doubt all, but do not doubt yourself.

The less intelligent the white man is, the more stupid he thinks the black.

The individual person is more interesting than people in general; he and not they is the one whom God created in His image.

Profound optimism is always on the side of the tortured.