Simon Sinek is a modern day guru in leadership. His TED Talk, Start with Why, has been viewed by over 7 million people worldwide and has been translated into 25 languages. During his talk, Simon explains why all the most successful companies start with purpose, mission and values and then show how other companies differ in their business models. He also talks about how leaders must inspire people to follow them rather than forcing them to do so with fear of punishment or withholding incentives until they comply.