VISIT CNBC.COMX Entrepreneurs EntrepreneursDaymond John, Mark Zuckerberg and Mark Cuban all agree on one thing that makes entrepreneurs successful Emmie Martin | @emmiemartin 16 Mins Ago CNBC.com David A. Grogan | CNBC Daymond John speaking at the Iconic Conference in New York on June 7th, 2017. SHARES Daymond John knows a thing or two about starting...