14. I have seen it all, and everything is just as senseless as chasing the wind.
15. If something is crooked,it can't be made straight;if something isn't there,it can't be counted.
16. I said to myself, “You are by far the wisest person who has ever lived in Jerusalem. You are eager to learn, and you have learnt a lot.”
17. Then I decided to find out all I could about wisdom and foolishness. Soon I realized that this too was as senseless as chasing the wind.
18. The more you know,the more it hurts;the more you understand,the more you suffer.