Conclusion #3: Passion Is a Side Effect of Mastery - Cal Newport

Marcus Aurelius asked: “You see how few things you have to do to live a satisfying and reverent life?

Your will, in other words, is not a manifestation of your character that you can deploy without limit; it’s instead like a muscle that tires.

In the absence of clear indicators of what it means to be productive and valuable in their jobs, many knowledge workers turn back toward an industrial indicator of productivity: doing lots of stuff in a visible manner.