Real knowledge is to know the extent of one's ignorance.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.
No man's knowledge here can go beyond his experience.
Most people have never learned that one of the main aims in life is to enjoy it.
Knowing is not enough; we must apply. Willing is not enough; we must do.
The only good is knowledge and the only evil is ignorance.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
Study without desire spoils the memory, and it retains nothing that it takes in.
No power and no treasure can outweigh the extension of our knowledge.
Educate the children and it won't be necessary to punish the men.
I like poems you can tack all over with a hammer and there are no hollow places.
Education is a system of imposed ignorance.
Necessity is the mother of invention.
The whole of science is nothing more than a refinement of everyday thinking.
If the facts don't fit the theory, change the facts.
Just because I don't care doesn't mean I don't understand.
Science is not only a disciple of reason but, also, one of romance and passion.
I am a part of everything that I have read.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.