By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.

Everything excellent is as difficult as it is rare.

You can be rich in spirit, kindness, love and all those things that you can't put a dollar sign on.

Only from the heart can you touch the sky.

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

Those who dance are considered insane by those who cannot hear the music.

Great dreams of great dreamers are always transcended.

Circumstances do not make a man, they reveal him.

Wise men speak because they have something to say; Fools because they have to say something.

The lie is a condition of life.

To be wronged is nothing unless you continue to remember it.

Those who know, do. Those that understand, teach.

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.

It is always advisable to perceive clearly our ignorance.

Creativity is the process of having original ideas that have value.

Criticize the act, not the person.

Courage, above all things, is the first quality of a warrior.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

Love one another, but make not a bond of love: Let it rather be a moving sea between the shores of your souls.

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

Knowing is not enough, we must apply. Willing is not enough, we must do.