Before revision: Hartland's overall ego-strengthening approach was based upon the "Self-Mastery" method that Émile Coué (1857-1926) had polished over two decades of practice, and had reached its final form c.1920 , Waxman, 1989, p 218; Heap & Aravind, 2001, p. 126; Yeates, 2016c, p 68; Moss & Willmarth, 2017, p. 126. and his ego-strengthening monologueNamely, Hartland 1965, p. 91; 1966, pp.
After revision: Hartland's overall ego-strengthening approach was based upon the "Self-Mastery" method that Émile Coué (1857-1926) had polished over two decades of practice; and had reached its final form c.1920 , Waxman, 1989, p 218; Heap & Aravind, 2001, p. 126; Yeates, 2016c, p 68; Moss & Willmarth, 2017, p. 126. and Hartland's ego-strengthening monologueNamely, Hartland 1965, p. 91; 1966, pp.