
Ben Stein interviewed by Paul Crouch Jr. on Trinity Broadcasting Network, First To Know with Paul Crouch Jr., April 21, 2008, 21 April 2008, 2008-04-27 http://www.tbn.org/video_portal/?which=bts,
Source: Invitation to Sociology (1963), Chapter 1
Ben Stein interviewed by Paul Crouch Jr. on Trinity Broadcasting Network, First To Know with Paul Crouch Jr., April 21, 2008, 21 April 2008, 2008-04-27 http://www.tbn.org/video_portal/?which=bts,
Source: Dynamics in Psychology, 1940, p. 116
Hans Freudenthal (1978). Weeding and Sowing. Preface to a Science of Mathematical Education; As cited in: Ben Wilbrink (2013) " Hans Freudenthal Aantekeningen bij zijn publicaties http://www.benwilbrink.nl/literature/freudenthal.htm".
Source: 1950s, The development of operations research as a science, 1956, p. 265, the lead paragraph ; Cited in: Joe Kelly (1969) Organizational behaviour. p. 26.
Source: Imperialism, the Highest Stage of Capitalism: Full Text of 1916 Edition
“Educational technique needs a philosophy, which is a matter of faith rather than of science.”
Hans Freudenthal (1977) Weeding and Sowing: Preface to a Science of Mathematical Education. p. 33
Source: A Treatise on the Seven Rays: Volume 4: Esoteric Healing (1953), Vaccines, p. 322/4