"To laugh often and much; to win the respect of intelligent people and the affection of children; to leave the world a better place; to know even one life has breathed easier because you have lived. This is to have succeeded."
(Source unknown. But this is apparently a shortend version of a quote by Ralph Waldo Emerson.)
Almost every time I read this I cry a little bit. Not because of my burning desire to succeed with the project, but because I wish so badly that everyone else had the same desire to succeed.