When I applied mine heart to know wisdom, and to see the business that is done upon the earth: (for also there is that neither day nor night seeth sleep with his eyes:)
And I applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.
There is one that is alone, and he hath not a second; yea, he hath neither son nor brother; yet is there no end of all his labour, neither are his eyes satisfied with riches. For whom then, saith he, do I labour, and deprive my soul of good? This also is vanity, yea, it is a sore travail.
I turned about, and my heart was set to know and to search out, and to seek wisdom and the reason of things, and to know that wickedness is folly, and that foolishness is madness:
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man hath power over another to his hurt.