- Most people are foolish, and rationalize their emotions rather than thinking. Relying too much on logic or rationality will thus be a barrier to social advancement. In other words, it doesn't matter how right you are; if what you say makes people feel bad, that's ll they'll remember.

- The more vociferously people express their opinions about some external issue, the more likely it is that they're talking about themselves.

- Pay less attention to the news. If it's really important you'll hear about it anyway. Devote more of your mental attention to what you're really interested in.

- Quitting smoking starts to really pay off after about a year. After a few years, it feels outstanding.