Good deeds shun the light as anxiously as evil deeds: the latter fear that disclosure will bring on pain (as punishment), while the former fear that disclosure will take away pleasure (that pure pleasure, that pleasure per se, which immediately ceases once the vanity's satisfaction is added).
For some natures, changing their opinions is just as much a requirement of cleanliness as changing their clothes: for others, however, it is merely a requirement of vanity.
Good resolutions are useless attempts to interfere with scientific laws. Their origin is pure vanity. Their result is absolutely nil. They give us, now and then, some of those luxurious sterile emotions that have a certain charm for the weak.... They are simply cheques that men draw on a bank where they have no account.
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.
Then a strange thing happened. She turned to him and smiled, and as he saw her smile every rag of anger and hurt vanity dropped from him — as though his very moods were but the outer ripples of her own, as though emotion rose no longer in his breast unless she saw fit to pull an omnipotent controlling thread.
The strongest knowledge (that of the total freedom of the human will) is nonetheless the poorest in successes: for it always has the strongest opponent, human vanity.