For in an abundance of wisdom is an abundance of frustration, and the one who increases in knowledge also increases in sorrow.
To man He said: ‘Behold, the fear of the Lord, that is wisdom; and to depart from evil is understanding.’ ”
Then I said in my heart, “The same event that befalls the fool will also befall me. So to what advantage is my wisdom?” Then I said to myself, “This also is vanity.”
All his days are sorrowful, and his work is a vexation. Even at night his heart finds no rest. This also is vanity.
Do not be excessively righteous, and do not be extremely wise. Why ruin yourself?