Science is a way of thinking much more than it is a body of knowledge.

It is beyond a doubt that all our knowledge begins with experience.

The secret of life is not enjoyment but education through experience.

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

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

When you know better you do better.

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

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

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

The books that the world calls immoral are books that show the world its own shame.

Investigate, educate and organize.

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

Education is a system of imposed ignorance.

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.

Learning never exhausts the mind.

He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.

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

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

Study without desire spoils the memory, and it retains nothing that it takes in.

In mathematics you don't understand things. You just get used to them.

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.