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

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

I am a part of everything that I have read.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

No man's knowledge here can go beyond his experience.

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

A cynic is a man who knows the price of everything, and the value of nothing.

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

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

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

A child educated only at school is an uneducated child.

Imagination is more important than knowledge.

Those who fail to learn the lessons of history are doomed to repeat them.

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

Any sufficiently advanced technology is indistinguishable from magic.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

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

I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.

You can never be overdressed or overeducated.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.