Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.

We choose our joys and sorrows long before we experience them.

Those who see the invisible can do the impossible.

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

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

Experience keeps a dear school, but fools will learn in no other.

It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt.

A proverb is much matter distilled into few words.

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.

A wise man can learn more from a foolish question than a fool can learn from a wise answer.

We may encounter many defeats but we must not be defeated.

Wrong life cannot be lived rightly.

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

A house divided against itself cannot stand.

Medicine heals diseases of the body, wisdom frees the soul from passions.

If you don't know where you're from, you'll have a hard time saying where you're going.

Anger begins in folly, and ends in repentance.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

I hear and I forget. I see and I remember. I do and I understand.

Desire is the very essence of man.

Great dreams of great dreamers are always transcended.