"My mind isn’t easily upset; I’m not easily drawn into the maelstrom. I don’t get angry for long, anger doesn’t last in me. When I do get angry I don’t speak harshly, nor do I advertise my own virtues. I carefully restrain myself out of regard for my own welfare."
January 1, 1970
https://en.wikiquote.org/wiki/%C5%9Aakra_(Buddhism)