Really? Do you think people are good at selecting a path that makes them happy? I don't. Related: https://twitter.com/webwright/status/451934942357098496

I'm not supporting this particular book, but there is plenty of great research about what correlates to happiness. Here's a great post to read that links to tons of research on the topic: http://lesswrong.com/lw/4su/how_to_be_happy/