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

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

Men are not prisoners of fate, but only prisoners of their own minds.

Common sense is in spite of, not as the result of education.

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

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

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

Most of us have far more courage than we ever dreamed possible

The only real mistake is the one from which we learn nothing.

You want a love which is born out of meditation, not born out of the mind.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

Time flies over us, but leaves its shadow behind.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.

Only idiots refuse to change their minds.

Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.

There are no limitations to the mind except those we acknowledge.

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

Gravity is only the bark of wisdom's tree; but it preserves it

Why fit in when you were born to stand out?

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

The most certain sign of wisdom is cheerfulness.