John R. Sabin was born in Springfield, Mass, and educated at Williams College (BA) and the University of New Hampshire (PhD). Following that, he was a postdoctoral at Uppsala University in Sweden, and at Northwestern University in Evanston, Ill. For the past four decades, he has worked in the Quantum Theory Project, Department of Physics, at the University of Florida as Professor of Physics. He also spent fifteen years as Associate Dean in the College of Liberal Arts & Sciences. For the past thirty years he has also been Adjungeret Professor at the University of Southern Denmark. Prof. Sabin is a fellow of the American Physical Society and has been a Fulbright Fellow. He is Editor of Advances in Quantum Chemistry, and is on the editorial boards of several journals. Prof. Sabin’s scientific interests have always been in the theory of molecular electronic structure. More recently, he has been working on the theory of interaction of fast particles, mostly protons and alpha particles, with proto-biological molecules, in terms of the transfer of energy from the projectile to the molecular target, and the outcome of that energy transfer. Such energy transfer is primarily electronic, and the initial electronic excitation results in target electronic and vibrational excitation, ionization, fragmentation, charge exchange, and other processes. The study of these processes, known as stopping power, has applications in fields from microelectronics to tumor therapy. The investigations are interesting and continue.