(swiped from Team Pyro's post on good and bad transparency)
"I am the subject of depressions of spirit so fearful that I hope none of you ever get to such extremes of wretchedness as I go to, but I always get back again by this--I know I trust Christ. I have no reliance but in Him, and if He falls I shall fall with Him, but if He does not, I shall not. Because He lives, I shall live also, and I spring to my legs again and fight with my depressions of spirit and my down castings, and get the victory through it; and so may you do, and so you must, for there is no other way of escaping from it. In your most depressed seasons you are to get joy and peace through believing."
--Charles Haddon Spurgeon
(from "Joy and Peace in Believing")