He has also written about religious experiences, defending a four-stage model of religious experiences, based upon Graham Wallas' four-stage model of problem-solving in the psychology of creativity (Batson, Schoenrade & Ventis, 1993).
Martin Wiener, Between two worlds : The political thought of Graham Wallas, Oxford: Clarendon Press, 1971.
Graham Wallas greatly influenced Mankind in the Making, especially the first few chapters.
At age 17, he entered Harvard University where he studied under George Santayana, William James, and Graham Wallas, concentrating upon philosophy and languages (he spoke German and French), and earned his degree in three years, graduating as a member of the Phi Beta Kappa society.
Alexander Graham Bell | Graham Greene | Graham Nash | Martha Graham | Billy Graham | Lindsey Graham | Bob Graham | Graham Taylor | Graham Parker | Graham Norton | Graham Hill | Graham Hancock | Dan Graham | The Graham Norton Show | Heather Graham | Graham Chapman | George Graham | Jorie Graham | Graham Turner | Graham Kennedy | Graham Gooch | Graham Bonnet | Graham Henry | Graham Coxon | Davey Graham | Stedman Graham | Ronald Graham | Graham Land | Bill Graham | Moonlight Graham |