Educate the children and it won't be necessary to punish the men.

What is now proved was once only imagined.

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

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

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

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

The task of a writer is not to solve the problem but to state the problem correctly.

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.

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

Know what you are talking about.

Necessity is the mother of invention.

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

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

Investigate, educate and organize.

Science is what we have learned about how to keep from fooling ourselves.

Books are as useful to a stupid person as a mirror is useful to a blind person.

If you want the present to be different from the past, study the past.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

The more I read, the more I acquire, the more certain I am that I know nothing.

A thought is an idea in transit.

Better know nothing than half-know many things.