Ecclesiastes 7:23 KJV

21Also take no heed unto all words that are spoken; lest thou hear thy servant curse thee:

22For oftentimes also thine own heart knoweth 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.

24That which is far off, and exceeding deep, who can find it out?

25I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness: