Geometry is beautifully logical, and it teaches you how to think and prove that things are so, step by step by step. Proofs are excellent lessons in reasoning. Without logic and reasoning, you are dependent on jumping to conclusions or - worse - having empty opinions.

Have you ever noticed that when you must struggle to hear something, you close your eyes?

I believe Picasso's success is just one small part of the broader modern phenomenon of artists themselves rejecting serious art- perhaps partly because serious art takes so much time and energy and talent to produce-in favor of what I call `impulse art': art work that is quick and easy, at least by comparison.

Suppose you're on a game show, and you're given the choice of three doors. Behind one door is a car, the others, goats. You pick a door, say #1, and the host, who knows what's behind the doors, opens another door, say #3, which has a goat. He says to you: 'Do you want to pick door #2?' Is it to your advantage to switch your choice of doors?

How can we live in freedom and maintain that we are entitled to *anything* that we can't get without the labor of others? Remember, if we are entitled to the labor of others, that makes slaves of those others.

Success may be the ability to be happy with whatever we're stuck with.

Play more than one game at a time. This is a painless way to learn how to do many things at once.