" Remember: the greatest danger you face in the world today is that you are replaceable. As you get older, people who are younger, cheaper and more in tune with trends are rising up and threatening your position. Your only salvation is to mine your uniqueness, to combine various skills that set you apart. No one can do what you do. That is your endgame. "

― Robert Greene , Interviews with the Masters: A Companion to Robert Greene's Mastery