Intelligence is the ability to adapt to change.

Courage is resistance to fear, mastery of fear - not absence of fear.

The greatest of wealth is the richness of the soul.

Honesty is the first chapter in the book of wisdom.

We seldom realize, for example that our most private thoughts and emotions are not actually our own. For we think in terms of languages and images which we did not invent, but which were given to us by our society.

I don't know, I don't care, and it doesn't make any difference.

Confidence is contagious. So is lack of confidence.

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

It is always advisable to perceive clearly our ignorance.

We thought that we had the answers, it was the questions we had wrong.

Wrong life cannot be lived rightly.

If a man could have half of his wishes, he would double his troubles.

Nothing is softer or more flexible than water, yet nothing can resist it.

Sometimes one creates a dynamic impression by saying something, and sometimes one creates as significant an impression by remaining silent.

The only real laughter comes from despair.

Desire is poverty. Desire is the greatest impurity of the mind. Desire is the motive force for action. Desire in the mind is the real impurity. Even a spark of desire is a very great evil.

In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.

Knowing yourself is the beginning of all wisdom.

Good advice is always certain to be ignored, but that's no reason not to give it.

Wisdom... comes not from age, but from education and learning.

Those who cannot work with their hearts achieve but a hollow, half-hearted success that breeds bitterness all around.