To Florus 4.35
As though to crown this with a wickedness all his own, he added that God inflicted a punishment that was a lure and fuel for sin: a law in our members fighting unconquered against the law of our mind (compare Romans 7:23). By this sort of vengeance God would multiply crimes, not punish them. Having been angry at the evil will by which the sin was committed, he would make sinning a necessity thereafter. Let Manichaean frenzy decide what kind of judgment this is. At least it is clear that this judge invented by Augustine only pretends to abhor sin. In reality, he clings to sins with such affection that they could not find a more attentive nurse (Romans 7:23).
Latin
Ad quod tamen quasi corollarium peculiaris sceleris adiunxit, ut talem poenam a Deo illatam diceret, quae esset illecebra et fomes peccati, quae lex in membris invicta repugnaret legi mentis nostrae; quo genere ultionis multiplicaret Deus flagitia, non puniret; et qui iratus erat malae voluntati, qua fuerat erratum, reliquum faceret peccandi necessitatem. Quale sit tamen hoc iudicium, Manichaei furor viderit; dum constet, quia hic iudex qui ab Augustino fingitur, simularit se horrere peccatum, caeterum tanto eis adhaeret affectu, ut diligentiorem nutritium invenire non possint.