Augustinian Excursus

Any and every unrighteous man must be the object of our hatred in respect of his unrighteousness and the object of our love in respect of his humanity; that by reproving the fault in him which rightly earns our hatred, we may liberate that in him which rightly earns our love, that is to say the human nature itself, and set right every fault in it.

Contra Faustum Manichaeum 19.24 (Oliver O'Donovan, trans.) (Emphasis added.)