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

Never help a child with a task at which he feels he can succeed.

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

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

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

An investment in knowledge pays the best interest.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

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

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

Any sufficiently advanced technology is indistinguishable from magic.

Necessity is the mother of invention.

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

You can never be overdressed or overeducated.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

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.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

It is better to know how to learn than to know.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.