Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

What sculpture is to a block of marble, education is to a human soul.

A witty saying proves nothing.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

In order to stave off covetouness, greed, and spite, citizens world over must be educated.

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.

Science is what we have learned about how to keep from fooling ourselves.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

Courage, conviction and confidence.

Better know nothing than half-know many things.

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

If there were no bad people, there would be no good lawyers.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

Most people have never learned that one of the main aims in life is to enjoy it.

Civilization is a race between disaster and education.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

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

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

The deepest sin against the human mind is to believe things without evidence.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.