I think he was trying to tell us that life is not about achieving one great thing, because once that thing is over, life keeps going. What motivates you then? The important thing is having a passion, something you love doing, and the greatest joy in the world is that you get to wake up every day and do it.
Mike Massimino, Spaceman: An Astronaut's Unlikely Journey to Unlock the Secrets of the Universe
passion, passionate-living