The progressive development of man is vitally dependent on invention.

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

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

With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.

Knowledge becomes evil if the aim be not virtuous.

The ability to observe without evaluating is the highest form of intelligence.

What sculpture is to a block of marble, education is to a human soul.

The most savage controversies are those about matters as to which there is no good evidence either way.

Men are born ignorant, not stupid. They are made stupid by education.

Educate the children and it won't be necessary to punish the men.

Industrialize or perish.

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

An investment in knowledge pays the best interest.

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

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

The white man is very clever. He came quietly and peaceably with his religion. We were amused at his foolishness and allowed him to stay. Now he has won our brothers, and our clan can no longer act like one. He has put a knife on the things that held us together and we have fallen apart.

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.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

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

I am a part of everything that I have read.