EJ2000(i)
15 Therefore I commended joy because a man has no better thing under the sun than to eat and to drink and to be merry, for that shall abide with him of his labour the days of his life, which God gives him under the sun.
16 Therefore I applied mine heart to know wisdom and to see the business that is done upon the earth (for also there is he that neither day nor night sees sleep with his eyes).
17 And I have seen regarding all the works of God that man cannot attain to understand the work that is being done under the sun, because though a man labours to seek it out, yet he shall not find it; even though the wise man says that he knows it, yet he shall not be able to attain it.