The best any human can do is to pick a delusion that helps him get through the day. This is why people of different religions can generally live in peace. At some level, we all suspect that other people don't believe their own religion any more than we believe ours.
Scott AdamsOne Dilbert Blog reader noted that current research shows that happiness causes success more than success causes happiness. That makes sense to me. There's plenty of research about people having a baseline of happiness that doesn't vary much with circumstances. And given that happy people are typically optimistic, energetic, and fun to work with, I can see how happiness would lead to success.
Scott Adams