So teach us to number our days. Instruct us to set store by time, mourning for that time past wherein we have wrought the will of the flesh, using diligently the time present, which is the accepted hour and the day of salvation, and reckoning the time which lieth in the future to be too uncertain to allow us safely to delay any gracious work or prayer. Numeration is a child's exercise in arithmetic, but in order to number their days aright the best of men need the Lord's teaching. We are more anxious to count the stars than our days, and yet the latter is by far more practical.
- The Treasury of David