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

Courage, conviction and confidence.

I am a part of everything that I have read.

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

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

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

If the facts don't fit the theory, change the facts.

Knowledge, Action, Devotion are complementary to each other.

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

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.

When you know better you do better.

The first idea the child must acquire is that of the difference between good and evil.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

The man who does not read good books has no advantage over the man who can't read them.

Many much-learned men have no intelligence.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

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

I have no special talents. I am only passionately curious.

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

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

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