Founder, Craigslist
Material stuff won't make you happy. I'm pretty sure I got the message at the Hebrew school attached to the temple in Morristown, N.J., where I grew up. Maybe I was around eight at the time.
It's very true; I'm pretty happy with a tiny fraction of the wealth I could have. I know a bunch of really rich guys, and they're no happier than anyone else.
NEXT: What I learned from Rodney Dangerfield
Last updated July 22 2008: 11:27 AM ET