Daniel A. Greenberg (28 September 1934 – 2 December 2021), was one of the founders of the Sudbury Valley School, has published several books on the Sudbury model of school organization,[1] and was described by Sudbury Valley School trustee Peter Gray as the "principal philosopher" among its founders.[2] He was a physics professor at Columbia University, and was described by Lois Holzman as the school's "chief 'philosophical writer'".[3]
The principal philosopher among the group of parents and others who founded SVS was Daniel Greenberg, a wide-ranging scholar who had previously taught physics and the history of science at Columbia University.