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.
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).
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.
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.
The majority of mankind is lazyminded, incurious, absorbed in vanities, and tepid in emotion, and is therefore incapable of either much doubt or much faith.
Ecclesiastes said that "all is vanity," Most modern preachers say the same, or show it By their examples of true Christianity: In short, all know, or very short may know it.
Just as bones, tissues, intestines, and blood vessels are enclosed in a skin that makes it possible to bear the sight of a human being, so the agitations and passions of the soul are wrapped up in vanity: it is the soul's skin.
He who commends the nature of the soul as the supreme good, and condemns the nature of the flesh as evil, at once both carnally desires the soul, and carnally flies the flesh, because he feels thus from human vanity, not from divine truth.