Ecclesiastes 4:4, 8

I realized the reason people work hard and try to succeed: They are jealous of each other. This, too, is useless, like chasing the wind.

I saw a man who had no family, no son or brother. He always worked hard but was never satisfied with what he had. He never asked himself, “For whom am I working so hard? Why don’t I let myself enjoy life?” This also is very sad and useless.