We are not rich by what we possess but by what we can do without.

There can be no doubt that all our knowledge begins with experience.

All perception is colored by emotion.

Give a man everything he wants and at that moment everything is not everything

If justice perishes, human life on Earth has lost its meaning.

We can judge the heart of a man by his treatment of animals.

Always recognize that human individuals are ends, and do not use them as means to your end.

Do the right thing because it is right.

Science is organized knowledge. Wisdom is organized life.

But a lie is a lie, and in itself intrinsically evil, whether it be told with good or bad intents.

You only know me as you see me, not as I actually am

Patience is the strength of the weak, impatience is the weakness of the strong.

Rules for Happiness: something to do, someone to love, something to hope for.

The two great dividers are religion and LANGUAGE.

I had therefore to remove knowledge, in order to make room for belief.

The skilful employer of men will employ the wise man, the brave man, the covetous man, and the stupid man.

Unless you enter the tiger's lair, you cannot get hold of the tiger's cub's.

Wait by the river long enough and the body of your enemy will float by you.

Opportunities multiply as they are seized.