And I applied my mind to seek and to search out by wisdom all that is done under heaven; it is an unhappy business that God has given to the sons of men to be busy with.
a person who has no one, either son or brother, yet there is no end to all his toil, and his eyes are never satisfied with riches, so that he never asks, “For whom am I toiling and depriving myself of pleasure?” This also is vanity and an unhappy business.
I turned my mind to know and to search out and to seek wisdom and the sum of things, and to know the wickedness of folly and the foolishness which is madness.