Give a Man a Fish

Give a man a fish, you feed him for a day.  Teach a man to fish, he sets up shop next to you and before you know it, you're filing Chapter 11 and you're daughter's not talking to you because you can't afford an airbrush artist for her bat mitzvah. 

The student will always surpass the master because he is younger and therefore more dexterous and better at viral marketing.