If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
Evil being the root of mystery, pain is the root of knowledge.
What sculpture is to a block of marble, education is to a human soul.
If the facts don't fit the theory, change the facts.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
The highest result of education is tolerance.
Patience is a virtue, and I'm learning patience. It's a tough lesson.
The task of a writer is not to solve the problem but to state the problem correctly.
If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
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.
The most savage controversies are those about matters as to which there is no good evidence either way.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
Opinion is the medium between knowledge and ignorance.
Liberty without Learning is always in peril and Learning without Liberty is always in vain.
Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.
Free the child's potential, and you will transform him into the world.
It is possible to fly without motors, but not without knowledge and skill.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
Study without desire spoils the memory, and it retains nothing that it takes in.