Philosophy Talk debuted on KALW 91.7 FM in San Francisco in August 2003, with regular broadcasts beginning in early 2004. Over the course of a decade the Philosophers, their guests, and their listeners have discussed and debated everything from the meaning of life to pre-emptive military strikes and baseball. To celebrate ten years on the air, John and Ken listen back to some of their favorite conversations with the writers and thinkers who have joined them on the program, and they look ahead to the ongoing challenges of thinking hard on the radio.