Witty professor Randy Pausch shared his wisdom in his last lecture and became a viral video sensation.  Pausch, who was diagnosed with terminal pancreatic cancer, gave the lecture as a final good bye to his students and coworkers and most importantly, to his children. His presentation turned into one of the most touching and powerful YouTube videos. Millions were impacted by his simple message: Follow your childhood dreams.

Sadly, Pausch lost his battle on Friday in his Virginia home.  He was 47.

The entire lecture is below. I watched it a while back and I can tell he was an extraordinary man.