It is not the strength, but the duration, of great sentiments that makes great men.

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.

The greatest power we have is the power of choice.

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

Science is organized knowledge. Wisdom is organized life.

Jealousy is the tribute mediocrity pays to genius.

Don't raise your voice, improve your argument.

How often I found where I should be going only by setting out for somewhere else.

In moments of great grief, that’s where you look and immerse yourself. You realise you are not immortal, you are not a god, you are part of the natural world and you come to accept that.

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.

If you place your head in a lion's mouth, then you cannot complain one day if he happens to bite it off.

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

Do your little bit of good where you are; it's those little bits of good put together that overwhelm the world.

An intelligent hell would be better than a stupid paradise.

In the practice of tolerance, one's enemy is the best teacher.

Never ruin an apology with an excuse.

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

Appearances often are deceiving.

Throw your heart over the fence and the rest will follow.

Man is the only creature who refuses to be what he is.

For we walk by faith, not by sight