Presented and discussed the gist of this paper at the Twentieth Summer Conference (“The Humanizing and Dehumanizing of Man”) of the Institute on Religion in an Age of Science, Star Island, New Hampshire, July 28–August 4, 1973. “We wish to express our indebtedness to Ralph W. Gerard, Eleanor Fish Emerson, Helen Fraser, Calla Burhoe, George Riggan, and Gertrude Emerson Sen for assisting with the preparation of the manuscript, providing references, and, most important, discussion of the concepts and evidence,” the authors (...) note. (shrink)