And I gave my heart to seek and search out by wisdom concerning all which is done under the heavens. It is a sad task God has given to the sons of men to be humbled by it.

And I gave my heart to know wisdom and to know madness and folly; I know that this also is vexation of spirit.

All this I have seen, and I gave my heart to every work that is done under the sun. There is a time in which one man rules over another to his own hurt.

When I gave my heart to know wisdom, and to see the business that is done on the earth; for neither day nor night do men see sleep with their eyes.

then the dust shall return to the earth as it was, and the spirit shall return to God who gave it.