Isaac Newton

Errors are not in the art but in the artificers.

I can calculate the motion of heavenly bodies, but not the madness of people.

A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.

I've conducted an experiment on my kids. Instead of denying them access to media, I've encouraged it. They read comic books, play Nintendo and watch way too much TV.

We know: of course, with regard to the market and similar social structures, a great many facts which we cannot measure and on which indeed we have only some very imprecise and general information.

When large numbers of men are unable to find work, unemployment results.