  There is another way to show that the trivial version of psychological egoism is unsatisfactory. We ordinarily think there is a significant difference in selfishness between the soldier’s action and that of another soldier who, say, pushes someone onto the grenade to avoid being blown up himself. We think the former is acting unselfishly while the latter is acting selfishly. According to the trivial version of psychological egoism, both soldiers are equally selfish, since both are doing what they most desire.