Ecclesiastes 2:17-26

So I hated life, because the work that is wrought under the sun was grievous unto me; for all is vanity and a striving after wind. And I hated all my labor wherein I labored under the sun, seeing that I must leave it unto the man that shall be after me. And who knoweth whether he will be a wise man or a fool? yet will he have rule over all my labor wherein I have labored, and wherein I have showed myself wise under the sun. This also is vanity. Therefore I turned about to cause my heart to despair concerning all the labor wherein I had labored under the sun. For there is a man whose labor is with wisdom, and with knowledge, and with skilfulness; yet to a man that hath not labored therein shall he leave it for his portion. This also is vanity and a great evil. For what hath a man of all his labor, and of the striving of his heart, wherein he laboreth under the sun? For all his days are but sorrows, and his travail is grief; yea, even in the night his heart taketh no rest. This also is vanity. There is nothing better for a man than that he should eat and drink, and make his soul enjoy good in his labor. This also I saw, that it is from the hand of God. For who can eat, or who can have enjoyment, more than I? For to the man that pleaseth him God giveth wisdom, and knowledge, and joy; but to the sinner he giveth travail, to gather and to heap up, that he may give to him that pleaseth God. This also is vanity and a striving after wind.