Whether one man can be happier than another?

Objections

Objection 1 : It would seem that one man cannot be happier than another. For Happiness is "the reward of virtue," as the Philosopher says (Ethic. i, 9). But equal reward is given for all the works of virtue; because it is written (Mt. 20:10) that all who labor in the vineyard "received every man a penny"; for, as Gregory says (Hom. xix in Evang.), "each was equally rewarded with eternal life." Therefore one man cannot be happier than another.
Objection 2 : Further, Happiness is the supreme good. But nothing can surpass the supreme. Therefore one man's Happiness cannot be surpassed by another's.
Objection 3 : Further, since Happiness is "the perfect and sufficient good" (Ethic. i, 7) it brings rest to man's desire. But his desire is not at rest, if he yet lacks some good that can be got. And if he lack nothing that he can get, there can be no still greater good. Therefore either man is not happy; or, if he be happy, no other Happiness can be greater.