14. I have seen all the works that are done under the sun; and behold, all is vanity and a chasing after wind.
15. That which is crooked can’t be made straight; and that which is lacking can’t be counted.
16. I said to myself, “Behold, I have obtained for myself great wisdom above all who were before me in Jerusalem. Yes, my heart has had great experience of wisdom and knowledge.”
17. I applied my heart to know wisdom, and to know madness and folly. I perceived that this also was a chasing after wind.
18. For in much wisdom is much grief; and he who increases knowledge increases sorrow.