Ecclesiastes 2
20 Ref And I turned round to cause my heart to despair concerning all the labour that I laboured at under the sun.
21 Ref For there is a man whose labour `is' in wisdom, and in knowledge, and in equity, and to a man who hath not laboured therein he giveth it -- his portion! Even this `is' vanity and a great evil.
22 Ref For what hath been to a man by all his labour, and by the thought of his heart that he laboured at under the sun?
23 Ref For all his days are sorrows, and his travail sadness; even at night his heart hath not lain down; this also `is' vanity.