Ecclesiastes 7:19-24

Wisdom strengtheneth the wise more than ten mighty men which are in the city. For there is not a just man upon earth, that doeth good, and sinneth not. Also take no heed unto all words that are spoken; lest thou hear thy servant curse thee: for oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others. All this have I proved by wisdom: I said, I will be wise; but it was far from me. That which is far off, and exceeding deep, who can find it out?