Out of suffering have emerged the strongest souls; the most massive characters are seared with scars.

I've never known any trouble than an hour's reading didn't assuage.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

It is not enough to have a good mind; the main thing is to use it well.

I think, therefore I am.

Doubt is the origin of wisdom

Stupidity is a talent for misconception.

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

It takes a lot of courage to show your dreams to someone else.

You are not a drop in the ocean. You are the entire ocean, in a drop.

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

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

Proverbs are short sentences drawn from long experience.

You laugh at me because I'm different, I laugh at you because you're all the same.

We sometimes congratulate ourselves at the moment of waking from a troubled dream; it may be so the moment after death.

All great achievements require time.

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.

Not everything that can be counted counts, and not everything that counts can be counted.

When playing board-games which involve quizzes etc, you will always know the answers to everyone else's set of questions but never your own.

Everybody is ignorant, only on different subjects.

If you would take, you must first give, this is the beginning of intelligence.