Caption: Along with his inherent kindness and his dedication to teaching and mentorship, the interplay between humanity and technicality that permeated every facet of his life is what will be remembered most by Professor Emeritus John Dugundji s loved ones, colleagues, students, and friends. Credits: Photo courtesy of the Department of Aeronautics and Astronautics. Caption: In a 1970s photo, Professor Emeritus John Dugundji explains the impact of vibration on a model of an airplane wing as a graduate student looks on. Credits: Photo courtesy of the MIT Museum. Caption: Professor Emeritus John Dugundji works with graduate students in the 1960s. Credits: