Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
The most important part of teaching is to teach what it is to know.
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.
There is nothing more awful, insulting, and depressing than banality.
I cannot live without books.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
Knowing is not enough; we must apply. Willing is not enough; we must do.
I think that kids have a greater capacity for processing things than we give them credit for.
The great difficulty in education is to get experience out of ideas.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.
Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
The whole of science is nothing more than a refinement of everyday thinking.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
If you can't explain it simply, you don't understand it well enough.
Education is a system of imposed ignorance.
You can never learn less, you can only learn more.
The knowledge of all things is possible
If the facts don't fit the theory, change the facts.
The ability to observe without evaluating is the highest form of intelligence.