Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

A thought is an idea in transit.

The task of a writer is not to solve the problem but to state the problem correctly.

One test of the correctness of educational procedure is the happiness of the child.

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

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.

Necessity is the mother of invention.

Education is the kindling of a flame, not the filling of a vessel.

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

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

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

It is beyond a doubt that all our knowledge begins with experience.

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

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

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

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

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.

Any sufficiently advanced technology is indistinguishable from magic.

Books are as useful to a stupid person as a mirror is useful to a blind person.

The secret of life is not enjoyment but education through experience.

Knowing others is wisdom, knowing yourself is Enlightenment.