Imagination is more important than knowledge.

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

Courage, conviction and confidence.

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

Education is a system of imposed ignorance.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

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

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

Opinion is the medium between knowledge and ignorance.

The reading of all good books is like conversation with the finest men of past centuries.

All stable processes we shall predict. All unstable processes we shall control.

You can never learn less, you can only learn more.

The white man is very clever. He came quietly and peaceably with his religion. We were amused at his foolishness and allowed him to stay. Now he has won our brothers, and our clan can no longer act like one. He has put a knife on the things that held us together and we have fallen apart.

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.

What we know is a drop, what we don't know is an ocean.

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

Education is the kindling of a flame, not the filling of a vessel.

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.

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

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

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