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.

Most style is not honest enough.

Since in the long run deception is likely to be found out, your character had better not only seem good, but be it.

The simile sets two ideas side by side; in the metaphor they become superimposed.

It seems to me as natural and necessary to keep notes, however brief, of one's reading, as logs of voyages or photographs of one's travels. For memory, in most of us, is a liar with galloping consumption.