In 2006, Dave Chappelle walked away from a $50 million contract to continue his acclaimed show with Comedy Central.

But he didn't give his fans or the broader public much of a clue about why. In an interview with David Letterman, he finally answered some of those questions. And what he has to say about money and happiness makes a lot of sense.

With that, please check out "Can You Be Too Rich?" — a quick read by economist Umair Haque. This analogy really struck me: