In a tradition dating back to the school's earliest days, the entire school gathers for assembly on most Thursdays. Students, alumni/ae, and noted guests from the worlds of arts, letters, science, business, and politics speak, perform, and discuss their life's work.
- October 6: Charles Fried, former United States Solicitor General and current Harvard Law professor
- October 13: Rabbi Carl Perkins
- October 20: Zoe Beatty ’09, jewelry designer
- November 3: Christopher Barsi, engineer and physics teacher
- December 1: Mneesha Gellman, author and founder of the Emerson Prison Initiative
- December 8: Sooyun Coco Kim, pianist
Past Assembly Speakers...
...have included experts and innovators from all corners of human enterprise, including:
- Sandeep Das, Grammy Award–Winning Indian Tabla Player
- Jon Hiatt '66, Former General Counsel and Chief of Staff of the AFL-CIO
- Rev. Irene Monroe, LGBTQ Advocate, Theologian, and Speaker
- Anna Ornstein, Auschwitz Survivor, Psychoanalyst and Psychiatrist, Author, Speaker, and Scholar
- Sumbul Siddiqui, Mayor of Cambridge, Massachusetts
- Michelle Wu, as Boston City Councillor and Declared Candidate for Mayor of Boston
- William Gross, Commissioner of Police, City of Boston