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

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

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

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

The progressive development of man is vitally dependent on invention.

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

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

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

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

I learned very early the difference between knowing the name of something and knowing something.

The knowledge of all things is possible

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.

A child miseducated is a child lost.

If you can't explain it simply, you don't understand it well enough.

Many much-learned men have no intelligence.

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

Education is the most powerful weapon which you can use to change the world.

The direction in which education starts a man will determine his future in life

The first principle is that you must not fool yourself and you are the easiest person to fool.

Make it a rule never to give a child a book you would not read yourself.