People who run businesses are often smeared. But they shouldn’t be. “Making our lives better is what entrepreneurs do. We take it all for granted,” says Yaron Brook, Chair of the Ayn Rand Institute. In our full, hour-long interview, Brook defends the marketplace and the self-interest that drives it. He also carves out the path of self-interest through mountains of big issues: war, poverty, immigration, drugs and children–even how self-interest is important for your love life.