The greatest of all mistakes is to do nothing because you think you can only do a little

All that we see or seem is but a dream within a dream.

There is a wisdom of the head, and... there is a wisdom of the heart.

There's no sense in being precise when you don't even know what you're talking about.

Without courage, wisdom bears no fruit.

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

None but ourselves can free our minds.

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

Work is the price which is paid for reputation.

He who chooses the beginning of the road chooses the place it leads to.

Having a great intellect is no path to being happy.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

Doubt is the origin of wisdom

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

The most courageous act is still to think for yourself. Aloud.

There is nothing more uncommon than common sense.

You are braver than you believe, stronger than you seem, and smarter than you think.

You always admire what you really don't understand.

Science may set limits to knowledge, but should not set limits to imagination.

Every intelligent individual wants to know what makes him tick, and yet is at once fascinated and frustrated by the fact that oneself is the most difficult of all things to know.

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