Ecclesiastes 2:12

I turned — Being frustrated of my hopes in pleasure, I returned to a second consideration of my first choice, to see whether there was not more satisfaction to be gotten from wisdom, than I discovered at my first view. Done — As by others, so especially by myself. They can make no new discoveries as to this point. They can make no more of the pleasures of sense than I have done. Let me then try once more, whether wisdom can give happiness.