Simply, be good at one thing only. Focus your efforts on one pursuit. In talking about work/business. Don't put your energies into things that aren't important or don't further you in your bigger pursuits e.g. I play piano and draw. But I don't need to anymore other than occasionally for my own enjoyment. I'm going to stop doing those and just become the best I can with my career, own it. So just become the best at one thing instead of being mediocre or average at many things.