Books are as useful to a stupid person as a mirror is useful to a blind person.

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

Many much-learned men have no intelligence.

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

We could never learn to be brave and patient, if there were only joy in the world

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

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

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

Reading is to the mind what exercise is to the body.

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.

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

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

I am a part of everything that I have read.

The whole of science is nothing more than a refinement of everyday thinking.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

The ability to observe without evaluating is the highest form of intelligence.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

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

Don't worry that children never listen to you; worry that they are always watching you.

Imagination is more important than knowledge.

Evil being the root of mystery, pain is the root of knowledge.