If the facts don't fit the theory, change the facts.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
All stable processes we shall predict. All unstable processes we shall control.
Learning never exhausts the mind.
If there were no bad people, there would be no good lawyers.
Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
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.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
If you want the present to be different from the past, study the past.
When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.
Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
When you know better you do better.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Never help a child with a task at which he feels he can succeed.
My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
A child educated only at school is an uneducated child.