Most style is not honest enough.
Might was the measure of right.
The more populous the world and the more intricate its structure, the greater must be its fundamental insecurity. A world-structure too elaborately scientific, if once disrupted by war, revolution, natural cataclysm or epidemic, might collapse into a chaos not easily rebuilt.
Great fear is concealed under daring.
The simile sets two ideas side by side; in the metaphor they become superimposed.
The two World Wars came in part, like much modern literature and art, because men, whose nature is to tire of everything in turn... tired of common sense and civilization.