As it turns out, becoming a moral person can help you become a psychologically healthy person; promoting the happiness of others frequently enhances your own happiness.The following adages all support this concept except

Question

Quizplus · Accepted Answer

"To thine own self be true" does not directly promote the concept that promoting the happiness of others can enhance one's own happiness. Rather, it promotes the idea of being authentic and true to oneself, which can still contribute to psychological health but is not directly related to the idea of promoting the happiness of others. The other adages all promote the concept in different ways - virtue being its own reward suggests that moral behavior leads to personal satisfaction, doing unto others as you would have them do unto you directly promotes the idea of promoting others' happiness, and to err is human, to forgive is divine implies that forgiving others can lead to personal growth and happiness.

As It Turns Out, Becoming a Moral Person Can Help