Whether there are several original sins in one man?

❌ Objection 1 : It would seem that there are many original sins in one man. For it is written (Ps. 1:7): "Behold I was conceived in iniquities, and in sins did my mother conceive me." But the sin in which a man is conceived is original sin. Therefore there are several original sins in man.

❌ Objection 2 : Further, one and the same habit does not incline its subject to contraries: since the inclination of habit is like that of nature which tends to one thing. Now original sin, even in one man, inclines to various and contrary sins. Therefore original sin is not one habit; but several.

❌ Objection 3 : Further, original sin infects every part of the soul. Now the different parts of the soul are different subjects of sin, as shown above (Question [74]). Since then one sin cannot be in different subjects, it seems that original sin is not one but several.