Enemies
Life is too short to have enemies. I feel like energy placed in hating someone is energy completely wasted. There is just so much more you could be doing with your energy and brain power. Instead of thinking of ways to get even with your enemy through vengeful actions, you could be working towards constructing and building a better you.
When I was in grade school, one of the kids took some of my teck deck ramps and threw them out the window. I found out later that he was jealous of me, and I could’ve easily harbored a deep hatred for him, but I forgave him after he apologized. We’re great friends now.