Whether it is more grievous to sin through certain malice than through passion?

❌ Objection 1 : It would seem that it is not more grievous to sin through certain malice than through passion. Because ignorance excuses from sin either altogether or in part. Now ignorance is greater in one who sins through certain malice, than in one who sins through passion; since he that sins through certain malice suffers from the worst form of ignorance, which according to the Philosopher (Ethic. vii, 8) is ignorance of principle, for he has a false estimation of the end, which is the principle in matters of action. Therefore there is more excuse for one who sins through certain malice, than for one who sins through passion.

❌ Objection 2 : Further, the more a man is impelled to sin, the less grievous his sin, as is clear with regard to a man who is thrown headlong into sin by a more impetuous passion. Now he that sins through certain malice, is impelled by habit, the impulse of which is stronger than that of passion. Therefore to sin through habit is less grievous than to sin through passion.

❌ Objection 3 : Further, to sin through certain malice is to sin through choosing evil. Now he that sins through passion, also chooses evil. Therefore he does not sin less than the man who sins through certain malice.