Never put off for tomorrow, what you can do today.

Good means not merely not to do wrong, but rather not to desire to do wrong.

When you undervalue what you do, the world will undervalue who you are

Nothing is so strong as gentleness, nothing so gentle as real strength

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

It is man that makes truth great, not truth that makes man great.

Real knowledge is to know the extent of one's ignorance.

I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.

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

A man who as a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him.

Thoughts without content are empty, intuitions without concepts are blind.

Creativity is the greatest rebellion in existence.

Tis very certain the desire of life prolongs it.

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

The noblest pleasure is the joy of understanding.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

If we don't believe in freedom of expression for people we despise, we don't believe in it at all.

Immoderate desire is the mark of a child, not a man.

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

Empty your cup so that it may be filled; become devoid to gain totality.

He that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.