I came across this earlier this week and thought it would be something others might find interesting. The man speaking is (was? I'm not sure) a professor at Carnegie Melon University and has terminal cancer. He gave a "last lecture" and a lot of people took notice...even Oprah. Now, I'm not generally a huge fan of Oprah, but in this case, I agree that he is worth listening to.
So, if you have a full 76 minutes, click here.
For the abridged 10 or so minute Oprah version, click here.