A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

Common sense is the collection of prejudices acquired by age eighteen.

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

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.

There is nothing more awful, insulting, and depressing than banality.

Many much-learned men have no intelligence.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Opinion is the medium between knowledge and ignorance.

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

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

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

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

The first principle is that you must not fool yourself and you are the easiest person to fool.

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

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

Education is a system of imposed ignorance.

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

Most people have never learned that one of the main aims in life is to enjoy it.

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

Know what you are talking about.

What is freedom of expression? Without the freedom to offend, it ceases to exist.