It isn't what we don't know that gives us trouble, it's what we know that ain't so.
Science is a way of thinking much more than it is a body of knowledge.
Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.
You can never be overdressed or overeducated.
The highest result of education is tolerance.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
The man who does not read good books has no advantage over the man who can't read them.
The first principle is that you must not fool yourself and you are the easiest person to fool.
The schools ain't what they used to be and never was.
A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.
It is what you read when you don't have to that determines what you will be when you can't help it.
The whole of science is nothing more than a refinement of everyday thinking.
Education is the kindling of a flame, not the filling of a vessel.
The task of a writer is not to solve the problem but to state the problem correctly.
The real solution lies in a world in which charity will have become unnecessary.
The only true wisdom is in knowing you know nothing.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
Study without desire spoils the memory, and it retains nothing that it takes in.
Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.
What is freedom of expression? Without the freedom to offend, it ceases to exist.