Selections from the Writings of ‘Abdu’l-Bahá, op. cit., p. 106, (section 64.1).

ibid., p. 23, (section 7.2).

‘Abdu’l-Bahá, The Promulgation of Universal Peace, op. cit., pp. 455-456.

Juliet Thompson, The Diary of Juliet Thompson (Los Angeles: Kalimát Press, 1983), p. 313.

Shoghi Effendi, God Passes By, op. cit., pp. 244-245.

Bahá’í World Faith (Wilmette: Bahá’í Publishing Trust, 1976), p. 429.

‘Abdu’l-Bahá in Canada (Forest: National Spiritual Assembly of Canada, 1962), p. 51.

‘Abdu’l-Bahá, Paris Talks, 12th ed. (London: Bahá’í Publishing Trust, 1995), p. 64.

Eric Hobsbawm, Age of Extremes: The Short Twentieth Century, 1914-1991, op. cit., p. 23.

Gleanings from the Writings of Bahá’u’lláh (Wilmette: Bahá’í Publishing Trust, 1983), p. 264, (section CXXV).