3p41sc.md (546B)
1 If he believes that he has given just cause for the 2 love, he will take pride therein (III. xxx. and note); this is 3 what most often happens (III. xxv.), and we said that its 4 contrary took place whenever a man conceives himself to be hated 5 by another. (See note to preceding proposition.) This 6 reciprocal love, and consequently the desire of benefiting him 7 who loves us (III. xxxix.), and who endeavours to benefit us, is 8 called gratitude or thankfulness. It thus appears that men are 9 much more prone to take vengeance than to return benefits. 10 11