Imagination is more important than knowledge.
No man's knowledge here can go beyond his experience.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
To every action there is always an equal and opposite or contrary, reaction
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.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
If you can't explain it simply, you don't understand it well enough.
The fullness of knowledge only comes through the awareness of ignorance.
In mathematics you don't understand things. You just get used to them.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Intelligence plus character-that is the goal of true education.
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.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.
I learned very early the difference between knowing the name of something and knowing something.
It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Industrialize or perish.
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.