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

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

Just because I don't care doesn't mean I don't understand.

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

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.

Science is a way of thinking much more than it is a body of knowledge.

Don't learn to do, but learn in doing.

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

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

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

The highest result of education is tolerance.

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

Necessity is the mother of invention.

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

There is no authority who decides what is a good idea.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

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

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

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

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.