“Because in the real world, not the internet world where everything is an AB test, in the real world, if you're breathing, your selling. You have to sell the person who's checking you into the airline to let your extra bag be free, and put you in first class in an aisle seat. You have to sell when you apply for a job. When you want a promotion, you have to sell your product or your service. You're either making or selling every day of your life.”