More at http://philosophytalk.org/shows/desire.

There are two ways to have your desires fulfilled: you can either get what you want (if you're lucky enough) or change your desires. If we can fit our desires to what we have, we're likely to be a lot happier. So why do we desire things that are out of reach? Why do we have desires that make us unhappy? And what can we do about it? John and Ken explore the relationship between desire and happiness with William Irvine, author of "On Desire: Why We Want What We Want."