How can a child learn respect if they don't feel respected? As for wisdom, I have learned quite a lot from listening to children. They bring a type of wisdom that is formed through a clarity of vision, uncluttered by "grown-up" bias.
Sorry, but it seems like there's some deeper issue here. Try speaking to his mother about what happened. Children will act out around someone who they feel is a safe person who won't harm them. Sounds like this little one needs some extra love. Good luck.