No Third Thing Needed

Someone helps a stranger change a tyre on the side of the road. Nobody claps. Nobody hears about it. The stranger says thanks, maybe gets a name, probably doesn't. The person who stopped goes back to their car and keeps driving, and within a few minutes they've mostly forgotten it happened. That's the whole event. Nothing else gets added to it. Marcus Aurelius wrote about this directly. He said that when you've done a good act and someone else has benefited from it, why look for a third thing...