The schools ain't what they used to be and never was.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

The great difficulty in education is to get experience out of ideas.

Human behavior flows from three main sources: desire, emotion, and knowledge

If I have seen further it is by standing on the shoulders of Giants.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

I learned very early the difference between knowing the name of something and knowing something.

To every action there is always an equal and opposite or contrary, reaction

It is what you read when you don't have to that determines what you will be when you can't help it.

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

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.

I do not know how to teach philosophy without becoming a disturber of the peace.

In order to stave off covetouness, greed, and spite, citizens world over must be educated.

I have no special talents. I am only passionately curious.

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

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.

If there were no bad people, there would be no good lawyers.

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

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.