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.

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

If the facts don't fit the theory, change the facts.

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

You can never learn less, you can only learn more.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

Investigate, educate and organize.

Reading is to the mind what exercise is to the body.

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

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

I like poems you can tack all over with a hammer and there are no hollow places.

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

A child educated only at school is an uneducated child.

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

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.

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

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

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.

Education is a system of imposed ignorance.

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