Reply Obj. 3: As in injustice, which is a cardinal virtue, we consider equality of things, so in gratitude we consider equality of wills. For while on the one hand the benefactor of his own free-will gave something he was not bound to give, so on the other hand the beneficiary repays something over and above what he has received. _______________________
QUESTION 107
OF INGRATITUDE
(In Four Articles)
We must now consider ingratitude, under which head there are four points of inquiry:
(1) Whether ingratitude is always a sin?
(2) Whether ingratitude is a special sin?
(3) Whether every act of ingratitude is a mortal sin?
(4) Whether favors should be withdrawn from the ungrateful? _______________________
FIRST ARTICLE [II-II, Q. 107, Art. 1]
Whether Ingratitude Is Always a Sin?