Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

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

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

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

What we know is a drop, what we don't know is an ocean.

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

Know what you are talking about.

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.

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

Better know nothing than half-know many things.

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

A child miseducated is a child lost.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

Knowing is not enough; we must apply. Willing is not enough; we must do.

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

The great difficulty in education is to get experience out of ideas.

Real knowledge is to know the extent of one's ignorance.

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

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

The reading of all good books is like conversation with the finest men of past centuries.