19Wisdom giveth more strength to the wise than ten rulers which were in the city.
20For no man is so righteous upon earth, that he should do always good, and never sin.—
21Also take no heed unto all the words that are spoken: lest thou hear thy servant cursing thee.
22For oftentimes also doth thy own heart know that thou thyself likewise hast cursed others.—
23All this have I proved by wisdom: I said, I will be wise; but it was far from me.
Ecclesiastes 7
Ecclesiastes 7:19-23