Ecclesiastes 2:19

and who knoweth whether he shall be a wise man or a fool? Now if he hath power over all my labour for which I have toiled and in which I have displayed wisdom under the sun; surely this is vanity.

And who knows whether he will be a wise man or a fool? and whether he will have power over all my labour in which I laboured, and wherein I grew wise under the sun? this is also vanity.