The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves. Leon Trotsky More Quotes by Leon Trotsky More Quotes From Leon Trotsky The dynamic of revolutionary events is directly determined by swift, intense, and passionate changes in the psychology of classes which have already formed themselves before the revolution. Leon Trotsky changes passionate revolution events