Evil being the root of mystery, pain is the root of knowledge.

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

Imagination is more important than knowledge.

To educate a person in the mind but not in morals is to educate a menace to society.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

It is what you read when you don't have to that determines what you will be when you can't help it.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

Study without desire spoils the memory, and it retains nothing that it takes in.

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

A little knowledge is a dangerous thing. So is a lot.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

I cannot live without books.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

Learning never exhausts the mind.

You can never be overdressed or overeducated.

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

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

Free the child's potential, and you will transform him into the world.

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

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

The progressive development of man is vitally dependent on invention.