Life is not all sunshine and no shadow, all fair sailing and no storm, all growing green-leaved trees and no decaying bare hulks. Both halves of each pair are found either side by side or alternate, and none is so far off that the other never appears during a lifetime. The complete optimist is as unjustified as the complete pessimist. This said, it is nevertheless true that personal realization of the higher truth does give a contented mind a perennial hopefulness and an inward security. All these combine and fuse into a quiet sort of happiness.
-- Notebooks Category 13: Human Experience > Chapter 1: Situation > # 152