Whether the first sin of our first parent is contracted by his descendants, by way of origin?

❌ Objection 1 : It would seem that the first sin of our first parent is not contracted by others, by way of origin. For it is written (Ezech. 18:20): "The son shall not bear the iniquity of the father." But he would bear the iniquity if he contracted it from him. Therefore no one contracts any sin from one of his parents by way of origin.

❌ Objection 2 : Further, an accident is not transmitted by way of origin, unless its subject be also transmitted, since accidents do not pass from one subject to another. Now the rational soul which is the subject of sin, is not transmitted by way of origin, as was shown in the FP, Question [118], Article [2]. Therefore neither can any sin be transmitted by way of origin.

❌ Objection 3 : Further, whatever is transmitted by way of human origin, is caused by the semen. But the semen cannot cause sin, because it lacks the rational part of the soul, which alone can be a cause of sin. Therefore no sin can be contracted by way of origin.

❌ Objection 4 : Further, that which is more perfect in nature, is more powerful in action. Now perfect flesh cannot infect the soul united to it, else the soul could not be cleansed of original sin, so long as it is united to the body. Much less, therefore, can the semen infect the soul.

❌ Objection 5 : Further, the Philosopher says (Ethic. iii, 5): "No one finds fault with those who are ugly by nature, but only those who are so through want of exercise and through carelessness." Now those are said to be "naturally ugly," who are so from their origin. Therefore nothing which comes by way of origin is blameworthy or sinful.