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

Intelligence plus character-that is the goal of true education.

Dare to think for yourself.

An investment in knowledge pays the best interest.

If the facts don't fit the theory, change the facts.

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

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

If I have seen further it is by standing on the shoulders of Giants.

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

A thought is an idea in transit.

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

Necessity is the mother of invention.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

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

Investigate, educate and organize.

In mathematics you don't understand things. You just get used to them.

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.

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

I do not know how to teach philosophy without becoming a disturber of the peace.

It is better to know how to learn than to know.

Industrialize or perish.