George Bernard Shaw (2015). “The Collected Plays of George Bernard Shaw (Illustrated): Including Renowned Titles like Pygmalion, Mrs. Warren’s Profession, Candida, Arms and The Man, Man and Superman, The Inca Of Perusalem, Macbeth Skit, Caesar and Cleopatra, Androcles And The Lion”, p.1242, e-artnow
"Talks in Europe 1968". Jiddu Krishnamurti's 5th public talk in Amsterdam, The Netherlands (May 22, 1968) as quoted in "The Collected Works of J. Krishnamurti, Volume 15 (1964-1965): The Dignity of Living", book by Jiddu Krishnamurti, 1992.