Timothy Showalter is a tough-looking guy with a beard, tattoos and a flat Midwestern accent, who's pretty open about taking drugs. He thinks a lot about where life is taking him.
"I read somewhere that the idea of joy, and to live a joyful life, is different than living a happy life," he tells NPR's Steve Inskeep. "Happiness is fleeting. Happiness is something that you're always going to reach for but you're never gonna quite get or be satisfied with."