The deepest sin against the human mind is to believe things without evidence.
Opinion is the medium between knowledge and ignorance.
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.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.
One test of the correctness of educational procedure is the happiness of the child.
Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Human behavior flows from three main sources: desire, emotion, and knowledge
If there were no bad people, there would be no good lawyers.
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.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
An investment in knowledge pays the best interest.
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.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Free the child's potential, and you will transform him into the world.
Learning never exhausts the mind.