IN THE BLOGOSPHERE: I once attended a talk by the motivational Muslim speaker and activist Amr Khaled, one of Time Magazine’s most influential people, during which he told me that to be an influential Muslim, first aspire to be a successful Muslim. But how do you define success? And where do you get it from? This inspirational and intriguing talk by Simon Sinek, posted this month, addresses these questions and examines how great leaders inspire action.