Civilization is a race between disaster and education.

The only true wisdom is in knowing you know nothing.

To every action there is always an equal and opposite or contrary, reaction

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

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

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

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

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

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

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.

Imagination is more important than knowledge.

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

If you want the present to be different from the past, study the past.

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

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

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

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

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

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

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

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