During the summer of 2013 I helped train young social entrepreneurs from all over the planet to become builders of the kind of world they want. Besides all the technical skills they needed—to do research, build a website, raise start-up funds—they learned the inner skills that are vital in really transforming the world: skills to build trust in their teams, to resolve conflict quickly and effectively, to speak truth to power. There’s a growing passion out there to do this work—there were two thousand applicants for this yearlong course at the Do School in Berlin, Germany.