Mark Kurlansky, Nonviolence: The History of a Dangerous Idea, Foreword by Dalai Lama, p. 5-6 （页面存档备份，存于互联网档案馆）, Modern Library (April 8, 2008), ISBN 978-0-8129-7447-8 "Advocates of nonviolence — dangerous people — have been there throughout history, questioning the greatness of Caesar and Napoleon and the Founding Fathers and Roosevelt and Churchill."
Adam Roberts, Introduction, in Adam Roberts and Timothy Garton Ash (eds.), Civil Resistance and Power Politics: The Experience of Non-violent Action from Gandhi to the Present, Oxford University Press, 2009 pp. 3 and 13-20. （页面存档备份，存于互联网档案馆）
Mark Kurlansky, Nonviolence: The History of a Dangerous Idea, Foreword by Dalai Lama, p. 5-6 （页面存档备份，存于互联网档案馆）, Modern Library (April 8, 2008), ISBN 978-0-8129-7447-8 "Advocates of nonviolence — dangerous people — have been there throughout history, questioning the greatness of Caesar and Napoleon and the Founding Fathers and Roosevelt and Churchill."
Adam Roberts, Introduction, in Adam Roberts and Timothy Garton Ash (eds.), Civil Resistance and Power Politics: The Experience of Non-violent Action from Gandhi to the Present, Oxford University Press, 2009 pp. 3 and 13-20. （页面存档备份，存于互联网档案馆）
