My kid brother has a saying similar: "If you only knew what people thought about you, you'd be shocked at just how little!'
Love that guy! He's the sanest person I know.
Pretty much and what most people think of you is informed by a deep seated need to justify their existence finding fault with others, lest have no relevancy in their otherwise irrelevant lives....
It is a good thing to remember no matter how old you are or how you apply it, to your personal life or your business life.
Frankly, I think the list pretty much squares with the genuinely happy folks I know, and the miserable folks I know ... the list squares with what they ain't!