CAB(i)
17 So I hated life, because the work that was done under the sun was evil before me. For all is vanity and grasping for the wind.
18 And I hated all of my labor which I had toiled under the sun, because I must leave it to the man who will come after me.
19 And who knows whether he will be wise, or a fool? And whether he will have power over all my labor in which I labored, and in which I grew wise under the sun? This is also vanity.
20 So I went about to dismiss from my heart all my labor in which I had labored under the sun.
21 For there is such a man that his labor is in wisdom, and in knowledge, and in fortitude; yet this man shall give his portion to one who has not labored for it. This is also vanity and a great evil.
22 For it happens to a man in all his labor, and in the purpose of his heart in which he labors under the sun.
23 For all his days are sorrowful, and vexation of spirit is his; in the night also his heart rests not. This is also vanity.