Things which matter most must never be at the mercy of things which matter least.

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

The first method for estimating the intelligence of a ruler is to look at the men he has around him.

The experience gathered from books, though often valuable,is but the nature of learning whereas the experience gained from actual life is of the nature of wisdom.

A man may imagine things that are false, but he can only understand things that are true.

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

What can't be cured must be endured.

The most certain sign of wisdom is cheerfulness.

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

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

All great achievements require time.

Courage, above all things, is the first quality of a warrior.

If you have no problems, then you have no clue to what is going.

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

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

When you judge another, you do not define them, you define yourself.

Knowing yourself is the beginning of all wisdom.

Think globally, act locally.

One of the truest tests of integrity is its blunt refusal to be compromised.

Only idiots refuse to change their minds.

It seems essential, in relationships and all tasks, that we concentrate only on what is most significant and important.