For the last few months, former United Nations Secretary General Ban Ki-moon has been working with students and faculty at HKS on the deeply complex problems he grappled with during his decade-long tenure as the world's top diplomat.

In this episode, Ban discusses the experiences that drove him to pursue public service as a young man - including a high school encounter with John F. Kennedy; the skillset that sets effective world leaders apart; the oft-overlooked connection between climate change and an increase in violent conflict; his reaction to the US withdrawal from the Paris Climate Agreement; and his advice for young people who are eager to make the world better and more prosperous.

Ban is currently at HKS as an Angelopolous Global Public Leaders Fellow.