Physics is like sex: sure, it may give some practical results, but that's not why we do it.
My weapon is literature
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
Men are born ignorant, not stupid. They are made stupid by education.
Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
Those who fail to learn the lessons of history are doomed to repeat them.
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
Make it a rule never to give a child a book you would not read yourself.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Common sense is the collection of prejudices acquired by age eighteen.
The man who is fond of books is usually a man of lofty thought, and elevated opinions.
The deepest sin against the human mind is to believe things without evidence.
Real knowledge is to know the extent of one's ignorance.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Knowledge becomes evil if the aim be not virtuous.
An investment in knowledge pays the best interest.
The only true wisdom is in knowing you know nothing.
If you can't explain it simply, you don't understand it well enough.
Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.