He maintained a home for many years in Thornton Road, Cambridge, England, frequently visiting Christ's College, of which he had been made a distinguished Honorary Fellow, meanwhile serving from 1987 until retiring in 1991 as a visiting professor of International Studies at the University of California (1987–88) and University of South Carolina (1990–91).
For an extended period, he resided in Cambridge, England, on Thornton Road, often visiting Christ's College, to which he had been appointed an Honorary Fellow. He held professorial positions at the University of California (1987-88) and University of South Carolina (1990-91).