Let him who would move the world first move himself.

Having a great intellect is no path to being happy.

The noblest pleasure is the joy of understanding.

Nothing fixes a thing so intensely in the memory as the wish to forget it.

When you judge another, you do not define them, you define yourself.

Why fit in when you were born to stand out?

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.

The absent are never without fault, nor the present without excuse.

One never notices what has been done; one can only see what remains to be done.

Our society is run by insane people for insane objectives.

What's done can't be undone.

One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.

Experience is merely the name men gave to their mistakes.

Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.

A house is not a home unless it contains food and fire for the mind as well as the body.

If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.

Beer: The cause of, and solution to, all of life's problems.

Choose rather to be strong of soul than strong of body.

There is a wisdom of the head, and... there is a wisdom of the heart.

Anywhere you go in the world is what you make of it, not what you read in books.

Act as if the maxim of your action were to become through your will a general natural law