Ecclesiastes 8:9, 16-17

All this I have seen and applied my mind to every deed that has been done under the sun wherein a man has exercised authority over another man to his hurt.

When I gave my heart to know wisdom and to see the task which has been done on the earth (even though one should never sleep day or night), and I saw every work of God, I concluded that man cannot discover the work which has been done under the sun. Even though man should seek laboriously, he will not discover; and though the wise man should say, “I know,” he cannot discover.