Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

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

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.

No power and no treasure can outweigh the extension of our knowledge.

One test of the correctness of educational procedure is the happiness of the child.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

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

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

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

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

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

The secret of life is not enjoyment but education through experience.

My weapon is literature

You can never be overdressed or overeducated.

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

We could never learn to be brave and patient, if there were only joy in the world

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

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

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

Know what you are talking about.