For a man might labour with wisdom, knowledge, and skill; yet he leaves his heritage to a man who has not laboured for it. That too is futile and a great evil.
There is one, without a second, who has neither son nor brother. And there is no end to all his labours. His eye also is not satisfied with riches. “And for whom am I toiling and depriving myself of good?” That too is futility, and an evil task.