The highest result of education is tolerance.

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

If there were no bad people, there would be no good lawyers.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

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

Better know nothing than half-know many things.

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.

When you know better you do better.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

A child educated only at school is an uneducated child.

No power and no treasure can outweigh the extension of our knowledge.

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

Industrialize or perish.

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

Never help a child with a task at which he feels he can succeed.

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

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

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

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