Good angels, good men

Bear in mind what I am about to tell you: too often we spend a lot of our efforts trying to be good angels (of Heaven) and forget all about becoming good men and women (in this world). Our imperfections will accompany us to the grave. We cannot walk without touching the ground; and if it true that we must not go to sleep or sit down and do nothing, it is also true that we must not try to fly without wings.