Angels

Rebbe Moshe of Kobryn once looked at the Heavens and cried: "Angel, little angel!  It is no great trick to be an angel up there in the sky.  You don't have to eat and drink, beget children and earn money.  Just you come down to earth and worry about eating and drinking, about raising children and earning money, and we shall see if you keep on being an angel.  If you succeed, you may boast - but not now."  -Martin Buber

Or as Albert Schweitzer said, "You don't have to be an angel ignored to be saint."