'Saying' in the Bible

I communed with mine own heart, saying, Lo, I am come to great estate, and have gotten more wisdom than all they that have been before me in Jerusalem: yea, my heart had great experience of wisdom and knowledge.

Who is really wise? Who knows how to interpret this saying: "A person's wisdom improves his appearance, softening a harsh countenance."

He begins by saying what is foolish and ends by uttering what is wicked delusion.