Fear does more harm than the things you're afraid of and anger does more harm than the people or things that cause it.
Anger is a form of weakness that stems from irrational fears and perceived injuries.
In Stoicism, kindness is a sign of strength.
Being kind takes courage and wisdom, especially when situations or other people's behavior is difficult.
When you are kind, you are showing that you are in control of your emotions.
Emotions are choices.
Anger is merely fear in action.