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.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
The progressive development of man is vitally dependent on invention.
What we know is a drop, what we don't know is an ocean.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
Investigate, educate and organize.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
A thought is an idea in transit.
Just because I don't care doesn't mean I don't understand.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
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.
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.
Don't worry that children never listen to you; worry that they are always watching you.
The real solution lies in a world in which charity will have become unnecessary.
Many much-learned men have no intelligence.
Those who fail to learn the lessons of history are doomed to repeat them.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
Men are born ignorant, not stupid. They are made stupid by education.
Evil being the root of mystery, pain is the root of knowledge.