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American psychologist and social philosopher (1904–1990) who was the Edgar Pierce Professor of Psychology at Harvard University from 1958 until his retirement in 1974; contemporary academia considers Skinner a pioneer of modern behaviorism, along with John B. Watson and Ivan Pavlov. TLS, one page, 8.5 x 11, Harvard University letterhead, February 20, 1986. Letter to Philip L. Berman of the Center for the Study of Contemporary Belief, in full: "I'm afraid I am too heavily committed to take on something for the book you are planning." In fine condition.
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