Knowledge becomes evil if the aim be not virtuous.

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

Books are for people who wish they were somewhere else.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

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

If you can't explain it simply, you don't understand it well enough.

The most savage controversies are those about matters as to which there is no good evidence either way.

I cannot live without books.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

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

I am a part of everything that I have read.

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

Knowing is not enough; we must apply. Willing is not enough; we must do.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

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

Many much-learned men have no intelligence.

Imagination is more important than knowledge.

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

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

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

Know what you are talking about.