The highest activity a human being can attain is learning for understanding, because to understand is to be free.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

Just because I don't care doesn't mean I don't understand.

Civilization is a race between disaster and education.

You can never learn less, you can only learn more.

It is beyond a doubt that all our knowledge begins with experience.

Education is the most powerful weapon which you can use to change the world.

Investigate, educate and organize.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

The deepest sin against the human mind is to believe things without evidence.

The first idea the child must acquire is that of the difference between good and evil.

No man's knowledge here can go beyond his experience.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

I am indebted to my father for living, but to my teacher for living well.

Dare to think for yourself.

Men are born ignorant, not stupid. They are made stupid by education.

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.

Imagination is more important than knowledge.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

The books that the world calls immoral are books that show the world its own shame.

Patience is a virtue, and I'm learning patience. It's a tough lesson.