Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

The highest result of education is tolerance.

I am a part of everything that I have read.

The fullness of knowledge only comes through the awareness of ignorance.

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

Education is an ornament for the prosperous, a refuge for the unfortunate.

When you know better you do better.

I cannot live without books.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

Many much-learned men have no intelligence.

Real learning comes about when the competitive spirit has ceased.

You can never be overdressed or overeducated.

I learned very early the difference between knowing the name of something and knowing something.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

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

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

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

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

I am so clever that sometimes I don't understand a single word of what I am saying.

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

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.