Son Quotes - Page 32
Etty Hillesum, K. A. D. Smelik, Arnold Pomerans (2002). “Etty: The Letters and Diaries of Etty Hillesum, 1941-1943”, p.245, Wm. B. Eerdmans Publishing
Peter Deunov (2010). “Love Is All Forgiving: Reflections on Love and Spirituality”, p.113, Health Communications, Inc.
TV Mini-Series "Cosmos", 1980.
Immanuel Kant (1896). “Immanuel Kant's Critique of Pure Reason”
Heinz R. Pagels (1988). “The dreams of reason: the computer and the rise of the sciences of complexity”, Simon & Schuster