Ecclesiastes 4:6-8

One hand full of rest is better than two fists full of labor and striving after wind. Then I looked again at vanity under the sun. There was a certain man without a dependent, having neither a son nor a brother, yet there was no end to all his labor. Indeed, his eyes were not satisfied with riches and he never asked, “And for whom am I laboring and depriving myself of pleasure?” This too is vanity and it is a grievous task.