The Writer of this proverb was pretty blunt…if you’re opposed to God’s correction in your life, you’re dumb!  We know that God disciplines those He loves (Proverbs 3:12), but until we can realize it’s for our benefit not detriment…we’ll continue to rebel against  His correction.  Proverbs 9:9 says, ” Instruct a wise man and he will be wiser still; teach a righteous man and he will add to his learning.”   Greater wisdom and understanding can only be found in the “education” of God’s discipline.