Randy Pausch — American Educator born on October 23, 1960, died on July 25, 2008

Randolph Frederick "Randy" Pausch was an American professor of computer science, human–computer interaction, and design at Carnegie Mellon University in Pittsburgh, Pennsylvania... (wikipedia)

Brick walls are there for a reason. The brick walls aren't there to keep us out. The brick walls are there to show us how badly we want things.
I'm hanging in there, trying to spend as much quality time with my wife and kids as possible, and though it's very frustrating to know I won't beat the cancer, there's a great satisfaction in knowing that I'm walking off the field with no regrets.
I think the only advice I can give you on how to live your life well is, first off, remember... it's not the things we do in life that we regret on our deathbed, it is the things we do not.
The metaphor I've used is... somebody's going to push my family off a cliff pretty soon, and I won't be there to catch them. And that breaks my heart. But I have some time to sew some nets to cushion the fall. So, I can curl up in a ball and cry, or I can get to work on the nets.
Never, ever underestimate the importance of having fun.