Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

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

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

Real learning comes about when the competitive spirit has ceased.

He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

To every action there is always an equal and opposite or contrary, reaction

I am indebted to my father for living, but to my teacher for living well.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

The first idea the child must acquire is that of the difference between good and evil.

Learning never exhausts the mind.

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

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

Knowing others is wisdom, knowing yourself is Enlightenment.

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

The most important part of teaching is to teach what it is to know.

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

Those who fail to learn the lessons of history are doomed to repeat them.

Just because I don't care doesn't mean I don't understand.