For in much wisdom is much grief, and he who increases knowledge increases sorrow.
And to man he said, Behold, the fear of LORD, that is wisdom, and to depart from evil is understanding.
Be not over-righteous, nor show thyself too wise. Why should thou destroy thyself?
For all his days are [but] sorrows, and his travail is grief, yea, even in the night his heart takes no rest. This also is vanity.
Then said I in my heart, As it happens to the fool, so it will happen even to me, and why then was I more wise? Then said I in my heart that this also is vanity.