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

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

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

It is possible to fly without motors, but not without knowledge and skill.

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

I cannot teach anybody anything. I can only make them think

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

Education is the most powerful weapon which you can use to change the world.

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

Human behavior flows from three main sources: desire, emotion, and knowledge

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

The knowledge of all things is possible

Many much-learned men have no intelligence.

There is no authority who decides what is a good idea.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

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.

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

I decided to teach because I think that any person who studies philosophy has to be involved actively.

I am so clever that sometimes I don't understand a single word of what I am saying.