Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

Human behavior flows from three main sources: desire, emotion, and knowledge

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Any sufficiently advanced technology is indistinguishable from magic.

I like poems you can tack all over with a hammer and there are no hollow places.

Science is not only a disciple of reason but, also, one of romance and passion.

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

Books are as useful to a stupid person as a mirror is useful to a blind person.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

The whole of science is nothing more than a refinement of everyday thinking.

It is possible to fly without motors, but not without knowledge and skill.

Intelligence plus character-that is the goal of true education.

The highest result of education is tolerance.

All stable processes we shall predict. All unstable processes we shall control.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

I do not know how to teach philosophy without becoming a disturber of the peace.

There is nothing more awful, insulting, and depressing than banality.

The secret of life is not enjoyment but education through experience.

Knowledge becomes evil if the aim be not virtuous.

The only true wisdom is in knowing you know nothing.

Courage, conviction and confidence.