Carnegie Mellon professor Randy Pausch recently discovered that his battle with pancreatic cancer was lost, and he only had several months - possibly weeks - to live. The video's about his final lecture, which he entitled "How to Live Your Dreams."
He begins by saying, "If I don't seem as depressed or morose as I should be, sorry to disappoint you." And that pretty much sets the tone for the rest of the lecture, which is filled with self-deprecating humor and absolutely no trace of fear or self-pity.
At the end of the lecture, he reveals that the lecture wasn't for the audience - but his three children. As his oldest son's just five, he's focusing on making videos during his remaining days so his younger kids will have something to remember their father. "I find that I am completely positive. The only times I cry are when I think about the kids -- and it's not so much the 'Gee, I'll miss seeing their first bicycle ride' type of stuff as it is a sense of unfulfilled duty -- that I will not be there to help raise them, and that I have left a very heavy burden for my wife."