Thinking Quotes - Page 377
"Mountains Beyond Mountains: The Quest of Dr. Paul Farmer, A Man Who Would Cure the World". Book by Tracy Kidder, 2004.
Nathaniel Branden (1998). “Nathaniel Brandens Self-Esteem Every Day: Reflections on Self-Esteem and Spirituality”, p.157, Simon and Schuster
"The Ecology of Freedom". Book by Murray Bookchin, 1982.