China-U.S. relationship is certainly one of the most consequential in the world today. But the over 40 years of relations have been put into test during the past few years. However, people-to-people exchanges are never hindered by the discordant notes. For this edition of Dialogue show, we’ve invited Patrick Erwin, principal of Lincoln High School in Tacoma, Washington, the United States. He and his school have made remarkable contributions to U.S.-China educational and cultural exchanges.