(De Peccato Originali) Original sin, which is the sin which is not committed but which is inborn in man since Adam’s Fall, embraces two things: a) hereditary guilt (culpa hereditaria), the guilt of the one sin of Adam which God imputes to all men; and b) hereditary corruption (corruptio humanae naturae hereditaria), which by imputation of Adam’s guilt is transmitted to all his descendants through the natural descent from the first fallen pair. The Scripture
Volume 1, Page 538