March 23, 2023 | Pediatrician, author, activist

November 2, 2022 | Author, entrepreneur, technologist

October 21, 2022 | Physicist, climate scientist, natural resource security specialist

October 5, 2022 | Best-selling author, blogger, entrepreneur

July 15, 2022 | Co-Founder of Rappler.com and winner of the Nobel Peace Prize

May 31, 2022 | Urban Transportation Manager, Rocky Mountain Institute

March 31, 2022 | American political and communications consultant

February 22, 2022 | Climate Envoy for the Government of the Republic of the Marshall Islands

November 18, 2021 | San Francisco’s District Attorney, former public defender, Rhodes scholar

October 15, 2021| Director of the Earth System Science Center and author of The New Climate War

September 17, 2021 | A forum on addressing houselessness from the ground up.

May 21, 2021 | Hawai’i teens get answers on vaccine science, safety, and ethics for young people.

April 23, 2021 | Professor of Contemporary Archaeology at the University of Oxford, author of The Brutish Museums: The Benin Bronzes, Colonial Violence and Cultural Restitution

March 24, 2021 | Harvard physician & anthropologist, author of Epidemic Illusions

December 17, 2020 | Cardiologist, research scientist, and bestselling author

October 21, 2020 | Harvard economist and a former director of the Taubman Center

September 9, 2020 | Georgetown law professor and the author of Chokehold: Policing Black Men.

June 17, 2020 | Defensive end with the New England Patriots and author of Things That Make White People Uncomfortable

February 20, 2020 | The New York Times columnist and author of The Attention Merchants and The Curse of Bigness

January 14, 2020 | Deputy Editor at New York magazine and author of The Uninhabitable Earth

September 19, 2019 | Pulitzer Prize-winning novelist and MacArthur genius fellow

May 1, 2019 | Historian, award-winning author, and Dan and Maggie Inouye Chair in Democratic Ideals

April 3, 2019 | Cultural theorist and author of The Work of the Dead

February 26, 2019 | Visual Effects Supervisor, Alpha Studios

September 25, 2018 | Harvard business professor and faculty member at Apple University, Richard Tedlow is an expert on management decision-making and the history and future of technology

August 29, 2018 | Scientist, environmentalist, and adventurer Marcus Eriksen is one of the world’s leading advocates for cleaning plastic pollution from the oceans.

February 27, 2018 | Founding Director of the Smithsonian's National Museum of African American History and Culture

January 16, 2018 | President of Wesleyen University and advocate for liberal education

March 22, 2017 | Director, National Domestic Workers Alliance, MacArthur fellow, author of The Age of Dignity (2015).

February 24, 2017 | Essayist, academic, author of The Reactionary Mind — “the book that predicted Trump” (New Yorker) — and Fear: The History of a Political Idea.

April 8, 2016 | Scholar, author, activist

Spring 2015 Commencement | NBC News analyst, Director, Let’s Move!, White House Senior Advisor for Nutrition Policy (2009-2014).

Fall 2013 Commencement | Pulitzer prize-winning journalist, Founder and CEO, Define American

March 12, 2013 | Harvard Professor of Government, Johan Skytte Prize winner, member National Academy of Sciences

May 8, 2012 | Pulitzer Prize-winning New York Times reporter, author of A Singular Woman