Be Useful by Arnold Schwarzenegger
7.5 out of 10

There is no shortage of advice in the world.  I suspect that most are vain attempts to validate one's life choices.  "Be Useful" written by a determined workaholic who refuses to stay in a lane, somewhat fits that mold.  However, we should recognize healthy attitudes when we see them.  Not everything is a zero-sum game.  Worth the read.