In 1859, Mann gave his final commencement speech, including what became the college's motto: "Be ashamed to die until you have won some victory for humanity." Mann died in August and was interred on the Antioch College grounds. The next year, he was reinterred in Providence, Rhode Island, next to his first wife. Mann is commemorated by two monuments: an obelisk on campus that bears the college's motto and marks his original grave, and a bronze statue in the Glen Helen.