Relatively few of us will find the time-or take it-to live an ever enlarging life.

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?

Think of a hypothesis as a card. A theory is a house made of hypotheses.

Just because you're unemployed doesn't mean you're not doing anything useful. You are, for example, at least keeping your mother-in-law's wit sharp.

When you're in a good mood, bring up the past. When you're in a bad mood, stick to the present. And when you're not feeling emotional at all, it's time to talk about the future.

Know how to effectively voice a complaint or make a claim at a retail store.

If achieving your potential requires favorable judgment by others, you are much less likely to succeed.