Morbid melancholy results from subjectivity of mind. The self-contemplating mind, if it be a conscientious and feeling one, must be dissatisfied with what it sees within. Then it begins unconsciously to flatter itself with the idea that it is not the "moi" but the "non moi," the world around, which is evil. Hence comes Manichaeism, Asceticism, and that morbid tone of mind which is so accustomed to look for sorrow that it finds it even in joy -- because it will not confess to itself that sorrow belongs to sin, and that sin belongs to self; and therefore it vents its dissatisfaction on God's earth, and not on itself in repentance and humiliation.

The world looks dark. Shall we therefore be dark too? Is it not our business to bring it back to light and joy?

MS. Letter. 1843.