So do not be excessively righteous or excessively wise; otherwise you might be disappointed.

I have examined all this by wisdom; I said, “I am determined to comprehend this” – but it was beyond my grasp.

So I thought to myself, “The fate of the fool will happen even to me! Then what did I gain by becoming so excessively wise?” So I lamented to myself, “The benefits of wisdom are ultimately meaningless!”

Who knows if he will be a wise man or a fool? Yet he will be master over all the fruit of my labor for which I worked so wisely on earth! This also is futile!