Reading is to the mind what exercise is to the body.
Human behavior flows from three main sources: desire, emotion, and knowledge
Don't worry that children never listen to you; worry that they are always watching you.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.
I cannot live without books.
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.
The only true wisdom is in knowing you know nothing.
Dare to think for yourself.
I have no special talents. I am only passionately curious.
Books are for people who wish they were somewhere else.
When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Books are as useful to a stupid person as a mirror is useful to a blind person.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Educate the children and it won't be necessary to punish the men.
Know what you are talking about.
A child educated only at school is an uneducated child.
If you can't explain it simply, you don't understand it well enough.
I do not know how to teach philosophy without becoming a disturber of the peace.