I get heartfelt thanks from all kinds of people. Today I heard from a waitress in Georgia who has lost her job and is trying to figure out how her local bank can change the terms on her credit card and I heard from a physicist at a major research university who wants to explain a better theory of financial stress tests.

If you want to know the taste of a pear you must change the pear by eating it yourself. If you want to know the theory and methods of revolution you must take part in revolution. All genuine knowledge originates in direct experience.

If the facts don't fit the theory change the facts.

You can't run a business or anything else on a theory.

You cannot run a business or anything else on a theory.

The human species according to the best theory I can form of it is composed of two distinct races the men who borrow and the men who lend.

The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.

As for everything else so for a mathematical theory: beauty can be perceived but not explained.

My theory of characterization is basically this: Put some dirt on a hero and put some sunshine on the villain one brush stroke of beauty on the villain.

I have this theory that depending on your attitude your life doesn't have to become this ridiculous charade that it seems so many people end up living.