Ecclesiastes 1:16

1:16 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."
-World English Bible

Other Translation

1:16 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.
-King James Version