Whether a man hides his bad qualities and vices or confesses them openly, his vanity wants to gain an advantage by it in both cases: just note how subtly he distinguishes between those he will hide his bad qualities from and those he will face honestly and candidly.
If we make sacrifices in doing good or in doing ill, it does not alter the ultimate value of our actions; even if we stake our life in the cause, as martyrs do for the sake of our church : it is a sacrifice to our longing for power, or for the purpose of conserving our sense of power.
Knowing things halfway is a greater success than knowing things completely: it takes things to be simpler than they really are andso makes its opinions more easily understandable and persuasive.
Books that teach us to dance: There are writers who, by portraying the impossible as possible, and by speaking of morality and genius as if both were high-spirited freedom, as if man were rising up on tiptoe and simply had to dance out of inner pleasure.