This (original sin) was the primal laps of the rational creature, that is his first privation of the good. In train of this there crept in, even without his willing it, ignorance of the right things to do and also an appetite for noxious things. And these brought along with them, as their companions, error and misery. When these two evils are felt to be imminent, the soul’s motion in flight from them is called fear. Moreover, as the soul’s appetites are satisfied by things harmful or at least inane—and as it fails to recognize the error of its ways—it falls victim to unwholesome pleasures or may even be exhilarated by vain joys. From these tainted springs of action—moved by the lash of appetite rather than a feeling of plenty there flows out every kind of misery which is now the lot of rational natures.  –St Augustine ‘Handbook on Hope, Faith, and Love’