A cynic is a man who knows the price of everything, and the value of nothing.
Men are born ignorant, not stupid. They are made stupid by education.
A thought is an idea in transit.
The fullness of knowledge only comes through the awareness of ignorance.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
Courage, conviction and confidence.
Knowing is not enough; we must apply. Willing is not enough; we must do.
I cannot teach anybody anything. I can only make them think
Educate the children and it won't be necessary to punish the men.
The real solution lies in a world in which charity will have become unnecessary.
If you can't explain it simply, you don't understand it well enough.
He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.
What is now proved was once only imagined.
Those who fail to learn the lessons of history are doomed to repeat them.
Any sufficiently advanced technology is indistinguishable from magic.
No power and no treasure can outweigh the extension of our knowledge.
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.
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion