Ecclesiastes 2:20LXX

18Yea, I hated all my labour which I had taken under the sun: because I should leave it unto the man that shall be after me.

19And who knoweth whether he shall be a wise or a fool? yet shall he have rule over all my labour wherein I have laboured, and wherein I have shewed myself wise under the sun. This also vanity.

20Therefore I went about to cause my heart to despair of all the labour which I took under the sun.

21For there is a man whose labour in wisdom, and in knowledge, and in equity; yet to a man that hath not laboured therein shall he leave it his portion. This also vanity and a great evil.

22For what hath man of all his labour, and of the vexation of his heart, wherein he hath laboured under the sun?