Teaching Quotes - Page 57
Shinjō Itō (2009). “Shinjo: Reflections”, p.133
Robert A. Heinlein (2010). “The Green Hills of Earth and The Menace from Earth”, p.284, Baen Publishing Enterprises
Parker J. Palmer (2012). “The Courage to Teach: Exploring the Inner Landscape of a Teacher's Life”, p.32, John Wiley & Sons