Darwin, Descent of Man, p. 492.
Charles Darwin, The Expression of Emotion in Man and Animals, 3rd ed., Paul Ekman, ed. (New York: Oxford University Press, 1998). Originally published 1872.
De Waal is referring to Dale J. Langford, Sara E. Crager, et al., «Social Modulation of Pain as Evidence for Empathy in Mice», Science, 312, no. 5782 (June 30, 2006): 1967. For an overview, see McGill University, «New Pain Research Shows Mice Capable of Empathy», ScienceDaily, June 30, 2006, http://www.sciencedaily.com/releases/ 2006/06/060630100140.htm
Frans В. M. de Waal, Primates and Philosophers: How Morality Evolved (Princeton, N. J.: Princeton University Press, 2006).
For recent reviews see Shauna Shapiro and W. Alan Wallace, «Mental Balance Weil-Being: Building Bridges Between Buddhism and Western Psychology», American Psychologist, 61, no. 7 (October 2006): 690–701; and Roger Walsh and Shauna Shapiro, «The Meeting of Meditative Disciplines and Western Psychology: A Mutually Enriching Dialogue», American Psychologist, 61, no. 3 (April 2006): 227-39.