For generations, we have focused on the individual drivers of success: passion, hard work, talent, and luck. But today, success is increasingly dependent on how we interact with others. It turns out that at work, most people operate as either takers, matchers, or givers. Whereas takers strive to get as much as possible from others and matchers aim to trade evenly, givers are the rare breed of people who contribute to others without expecting anything in return. Listen to Michael's conversation with UPenn Wharton Professor Adam Grant, he is the school's youngest professor to ever achieve tenure, is top-rated by his students, and is author of "Give and Take: A Revolutionary Approach to Success." Original air date 26 April 2013. The book was published on 9 April 2013.