Be glad the obstacles are there; consider how difficult it would be to climb a smooth mountain.
by Johann Wolfgang von Goethe
WAKEN not Amor from sleep! The beauteous urchin still slumbers;
Go, and complete thou the task, that to the day is assign'd!
Thus doth the prudent mother with care turn time to her profit,
While her babe is asleep, for 'twill awake but too soon.