Those who fail to learn the lessons of history are doomed to repeat them.
The highest result of education is tolerance.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
To every action there is always an equal and opposite or contrary, reaction
You can never be overdressed or overeducated.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
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.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
Investigate, educate and organize.
Industrialize or perish.
The only good is knowledge and the only evil is ignorance.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
To educate a person in the mind but not in morals is to educate a menace to society.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
A thought is an idea in transit.
The first principle is that you must not fool yourself and you are the easiest person to fool.
The secret of life is not enjoyment but education through experience.