Courage, conviction and confidence.

It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.

Science is not only a disciple of reason but, also, one of romance and passion.

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

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

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

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

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

I like poems you can tack all over with a hammer and there are no hollow places.

Don't learn to do, but learn in doing.

My weapon is literature

No man's knowledge here can go beyond his experience.

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

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

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

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

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

Better know nothing than half-know many things.

To educate a person in the mind but not in morals is to educate a menace to society.

It is what you read when you don't have to that determines what you will be when you can't help it.