We must now consider the distinction of sins or vices: under which head there are nine points of inquiry:

(1) Whether sins are distinguished specifically by their objects?

(2) Of the distinction between spiritual and carnal sins;

(3) Whether sins differ in reference to their causes?

(4) Whether they differ with respect to those who are sinned against?

(5) Whether sins differ in relation to the debt of punishment?

(6) Whether they differ in regard to omission and commission?

(7) Whether they differ according to their various stages?

(8) Whether they differ in respect of excess and deficiency?

(9) Whether they differ according to their various circumstances?