In four ways ... should one who flatters be understood as a foe in the guise of a friend: He approves of his friend's evil deeds, he disapproves his friend's good deeds, he praises him in his presence, he speaks ill of him in his absence.
So far as we are human, what we do must be either evil or good: so far as we do evil or good, we are human: and it is better, in a paradoxical way, to do evil than to do nothing: at least we exist.
That virtue therefore which is but a youngling in the contemplation of evil, and knows not the utmost that vice promises to her followers, and rejects it, is but a blank virtue, not a pure; her whiteness is but an excremental whiteness.