Each problem that I solved became a rule which served afterwards to solve other problems.

No man has any natural authority over his fellow men.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

Muddy water is best cleared by leaving it alone.

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

What you're thinking is what you're becoming.

Kind words don't cost much. Yet they accomplish much.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.

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.

Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more

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

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

The place where you made your stand never mattered. Only that you were there...and still on your feet.

If you are neutral in situations of injustice, you have chosen the side of the oppressor.

All the great things are simple, and many can be expressed in a single word: freedom; justice; honor; duty; mercy; hope.

Doubt is the origin of wisdom

It was a melancholy secret that reality can arouse desires but never satisfy them.

Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.

What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

I've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.

Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.