To Florus 3.105

You have certainly done neither. After replying that catholics acknowledge free will—and pretending to be one of them—you immediately added a definition taking away what you seemed to have granted. For you say: ‘But anyone who says humans have free will to worship God rightly without his help is called a Pelagian.’ And again: ‘We say that humans have free will; but you say that anyone is free to do good’ (Augustine, Marriage and Sexual Desire 2.8).