Moralizing biology: The appeal and limits of the new compassionate view of nature

History of the Human Sciences

Volumn 26, Issue 3, 2013, Pages 82-106

  Meloni, Maurizio ^a  

^a UNIVERSITY OF NOTTINGHAM   (United Kingdom)

Author keywords

altruism; developmental biology; Frans de Waal; human nature; Jonathan Haidt; moral brain

Indexed keywords

EID: 84880104243     PISSN: 09526951     EISSN: 1461720X     Source Type: Journal    
DOI: 10.1177/0952695113492163     Document Type: Review

References (166)

1. Alexander R.Darwinism and Human Affairs. Seattle: University of Washington Press; 1979:.
2. Alexander R.The Biology of Moral Systems. New York: Aldine De Gruyter; 1987:.
3. Axelrod R.The Evolution of Cooperation. New York: Basic Books; 1984:.
4. Axelrod R.,Dion D.The Further Evolution of Cooperation.Science. 1988;242:1385-90.
5. Axelrod R.,Hamilton W. D.The Evolution of Cooperation.Science. 1981;211:1390-6.
6. Barash D.Sociobiology and Behavior. New York: Elsevier; 1977:.
7. Barnes B.,Dupré J.Genomes and What to Make of Them. Chicago, IL: University of Chicago Press; 2008:.
8. Bateson P.The Development and Integration of Behaviour: Essays in Honour of Robert Hinde. Bateson P., ed. Cambridge: Cambridge University Press; 1991:19-39.
9. Bateson P.,Mameli M.The Innate and the Acquired: Useful Clusters or a Residual Distinction from Folk Biology?.Developmental Psychobiology. 2007;49:818-31.
10. Bateson P.,Martin P.Design for a Life. New York: Simon & Schuster; 1999:.
11. Boella L.Neuroetica. La morale prima della morale. Milan: Cortina; 2008:.
12. Bonnie K. E.,de Waal F. B. M.Psychology of Gratitude. Emmons R. A.McCullough M. E., ed. Cary, NC: Oxford University Press; 2004:.
13. Borrello M.The Rise, Fall and Resurrection of Group Selection.Endeavour. 2005;29:43-7.
14. Bowler P.Theories of Human Evolution: A Century of Debate, 1844-1944. Baltimore, MD: Johns Hopkins University Press; 1986:.
15. Bowles S.Did Warfare among Ancestral Hunter-Gatherers affect the Evolution of Human Social Behaviors?.Science. 2009;324:1293-8.
16. Bowles S.,Gintis H.The Evolution of Strong Reciprocity: Cooperation in Heterogeneous Populations.Theoretical Population Biology. 2004;65:17-28.
17. Boyd R.,Gintis H.,Bowles S.,Richerson P. J.The Evolution of Altruistic Punishment.PNAS. 2003;100:3531-5.
18. Brooks D.Nice Guys finish First.New York Times. 2011a; (17 May): A27.
19. Brooks D.The Social Animal: A Story of How Success Happens. London: Short Books; 2011b:.
20. Brosnan S. F.,de Waal F.Monkeys reject Unequal Pay.Nature. 2003;425:297-9.
21. Brown S. L.,Fredrickson B. L.,Wirth M. M.,Poulin M. J.,Meier E. A.,Heaphy E. D.,Cohen M. D.,Schultheiss O. C.Social Closeness increases Salivary Progesterone in Humans.Hormones and Behavior. 2009;56:108-11.
22. Buller D.Adapting Minds: Evolutionary Psychology and the Persistent Quest for Human Nature. Cambridge, MA: MIT Press; 2006:.
23. Carey N.The Epigenetics Revolution: How Modern Biology is Rewriting Our Understanding of Genetics, Disease and Inheritance. London: Icon Books; 2012:.
24. Carruthers P.,Laurence S.,Stich S.The Innate Mind. Oxford: Oxford University Press; 2005-9:.
25. Changeux J.-P.Fondements Naturels de L'Ethique. Paris: Odile Jacob; 1991:.
26. Changeux J. P.The Physiology of Truth. Cambridge, MA and London: Harvard University Press; 2004:.
27. Changeux J.-P.,Damasio A.,Singer W.,Christen Y.Neurobiology of Human Values. Berlin: Springer; 2010:.
28. Changeux J. P.,Ricoeur P.What Makes Us Think?: A Neuroscientist and a Philosopher Argue about Ethics, Human Nature, and the Brain. Princeton, NJ: Princeton University Press; 2000:.
29. Churchland P. S.Braintrust: What Neuroscience Tells Us about Morality. Princeton, NJ: Princeton University Press; 2011:.
30. Cohen S.,Janicki-Deverts D.Can We improve Our Physical Health by altering Our Social Networks?.Perspectives on Psychological Science. 2009;4:375-8.
31. Collier J.,Stingl M.Evolutionary Naturalism and the Objectivity of Morality.Biology and Philosophy. 1993;8:47-60.
32. Cowie F.What's Within? Nativism Reconsidered. Oxford: Oxford University Press; 1999:.
33. Damasio A.Looking for Spinoza: Joy, Sorrow, and the Feeling Brain. New York: Harcourt; 2003:.
34. Damasio A.Descartes' Error: Emotion, Reason, and the Human Brain. London: Vintage; 2006[1994]:.
35. Darwin C.The Descent of Man, and Selection in Relation to Sex. Princeton, NJ: Princeton University Press; 1982[1871]:.
36. Daston L.The Tanner Lectures on Human Values. Peterson G. B., ed. Salt Lake City: University of Utah Press; 2004:371-92.
37. Dawkins R.The Selfish Gene. Oxford: Oxford University Press; 2006[1976]:.
38. de Quervain D. J.,Fischbacher U.,Treyer V.,Schellhammer M.,Schnyder U.,Buck A.,Fehr E.The Neural Basis of Altruistic Punishment.Science. 2004;305:1254-8.
39. de Waal F.Good-Natured: The Origins of Right and Wrong in Human and Other Animals. Cambridge, MA: Harvard University Press; 1996:.
40. de Waal F.Primates and Philosophers: How Morality Evolved. Macedo S.Ober J., ed. Princeton, NJ: Princeton University Press; 2006:.
41. de Waal F.Putting the Altruism back into Altruism: The Evolution of Empathy.Annual Review of Psychology. 2008;59:279-300.
42. de Waal F.The Age of Empathy: Nature's Lessons for a Kinder Society. New York: Three Rivers Press; 2009:.
43. de Waal F.,van Roosmalen A.Reconciliation and Consolation among Chimpanzees.Behavioral Ecology and Sociobiology. 1979;5:55-66.
44. Dugatkin L. A.Cooperation Among Animals: An Evolutionary Perspective. New York: Oxford University Press; 1997:.
45. Dupré J.Processes of Life: Essays in the Philosophy of Biology. Oxford: Oxford University Press; 2012:.
46. Elman J.,Bates E.,Johnson M.,Karmiloff-Smith A.,Parisi D.,Plunkett K.Rethinking Innateness: A Connectionist Perspective on Development. Cambridge, MA: MIT Press; 1996:.
47. Fehr E.,Fischbacher U.The Nature of Human Altruism.Nature. 2003;425:785-91.
48. Fehr E.,Gächter S.Altruistic Punishment in Humans.Nature. 2002;415:137-40.
49. Fischbacher U.,Gächter S.Strong Reciprocity, Human Cooperation, and the Enforcement of Social Norms.Human Nature. 2002;13:1-25.
50. Flack J. C.,de Waal F."Any Animal Whatever" Darwinian Building Blocks of Morality in Monkeys and Apes.Journal of Consciousness Studies. 2000;7:1-29.
51. Fox Keller E.The Century of the Gene. Cambridge, MA: Harvard University Press; 2000:.
52. Francis R.Epigenetics: How Environment Shapes Our Genes. New York: Barnes & Noble; 2012:.
53. Frank R. H.Passions Within Reason: The Strategic Role of the Emotions. New York: W. W. Norton; 1988:.
54. Gazzaniga M. S.The Ethical Brain. New York: Dana Press; 2005:.
55. Ghiselin M.The Economy of Nature and the Evolution of Sex. Berkeley: University of California Press; 1974:.
56. Gintis H.Strong Reciprocity and Human Sociality.Journal of Theoretical Biology. 2000;206:169-79.
57. Goleman D.Social Intelligence: The New Science of Human Relationships. London: Hutchinson; 2006:.
58. Gottlieb G.Synthesizing Nature and Nurture: Prenatal Roots of Instinctive Behaviour. Hillsdale, NJ: Lawrence Erlbaum Associates; 1997:.
59. Greene J. D.From Neural "is" to Moral "ought": What are the Moral Implications of Neuroscientific Moral Psychology?.Nature Reviews Neuroscience. 2003;4:847-50.
60. Greene J. D.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2008:35-79.
61. Greene J. D.,Cushman F. A.,Stewart L. E.,Lowenberg K.,Nystrom L. E.,Cohen J. D.Pushing Moral Buttons: The Interaction between Personal Force and Intention in Moral Judgment.Cognition. 2009;111:364-71.
62. Greene J.,Haidt J.How (and Where) does Moral Judgment work?.Trends in Cognitive Sciences. 2002;6:517-23.
63. Greene J. D.,Sommerville R. B.,Nystrom L. E.,Darley J. M.,Cohen J. D.An fMRI Investigation of Emotional Engagement in Moral Judgment.Science. 2001;293:2105-8.
64. Griffiths P. E.What Emotions Really Are: The Problem of Psychological Categories. Chicago, IL: Chicago University Press; 1999:.
65. Griffiths P. E.What is Innateness.The Monist. 2002;85:70-85.
66. GriffithsP. E. (2009) 'The Distinction between Innate and Acquired Characteristics', in Stanford Encyclopedia of Philosophy. Stanford, CA: Metaphysics Research Laboratory, Stanford University, accessible @: http://plato.stanford.edu/entries/innate-acquired/.
67. Griffiths P. E.,Gray R. D.Developmental Systems and Evolutionary Explanation.Journal of Philosophy. 1994;6:277-304.
68. Griffiths P. E.,Machery E.,Linquist S.The Vernacular Concept of Innateness.Mind & Language. 2009;24:605-30.
69. Griffiths P. E.,Stotz K.Cambridge Companion to Philosophy of Biology. Ruse M.Hull D., ed. Cambridge: Cambridge University Press; 2007:85-102.
70. Haidt J.The Emotional Dog and Its Rational Tail: a Social Intuitionist Approach to Moral Judgment.Psychological Review. 2001;108:814-34.
71. Haidt J.The New Synthesis in Moral Psychology.Science. 2007;316:998-1002.
72. Haidt J.The Righteous Mind: Why Good People Are Divided by Politics and Religion. New York: Allen Lane; 2012:.
73. Haidt J.,Bjorklund F.The Cognitive Science of Morality. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2007:181-217.
74. Haidt J.,Joseph C.The Innate Mind. Carruthers P.Laurence S.Stich S., ed. Oxford: Oxford University Press; 2007:367-91.
75. Haidt J.,Kesebir S.Handbook of Social Psychology. Fiske S. T.Gilbert D. T.Lindzey G., ed. Oboken, NJ: Wiley; 2010:797-832.
76. Hamilton W. D.The Genetical Evolution of Social Behavior I and II.Journal of Theoretical Biology. 1964;7:1-52.
77. Hauser M.Moral Minds: How Nature Designed Our Universal Sense of Right and Wrong. New York: HarperCollins; 2006:.
78. Jablonka E.,Lamb M. J.Epigenetic Inheritance and Evolution: The Lamarckian Dimension. Oxford: Oxford University Press; 1995:.
79. Jablonka E.,Lamb M. J.Evolution in Four Dimensions. Cambridge, MA: MIT Press; 2005:.
80. Joyce R.The Myth of Morality. Cambridge: Cambridge University Press; 2001:.
81. Joyce R.The Evolution of Morality. Cambridge, MA: MIT Press; 2006:.
82. Joyce R.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2008:371-94.
83. JoyceR. (2013) 'The Many Moral Nativisms', in SterelnyK.JoyceR.CalcottB.FraserB. (eds) Cooperation and its Evolution. Cambridge, MA: MIT Press; penultimate draft read in press @: http://www.victoria.ac.nz/staff/richard_joyce/acrobat/joyce_many.moral.nativisms.pdf.
84. Kahane G.,Shackel N.Do Abnormal Responses show Utilitarian Bias?.Nature. 2008;452:section.
85. Karmiloff-Smith A.Nativism versus Neuroconstructivism: Rethinking the Study of Developmental Disorders.Developmental Psychology. 2009;45:56-63.
86. Kaye H. L.The Social Meaning of Modern Biology: From Social Darwinism to Sociobiology. New Haven, CT: Yale University Press; 1986:.
87. Keltner D.Born to Be Good: The Science of a Meaningful Life. New York and London: Norton; 2009:.
88. Keltner D.,Marsh J.,Smith J. A.The Compassionate Instinct: The Science of Human Goodness. New York: Norton; 2010:.
89. Koenigs M.,Young L.,Adolphs R.,Tranel D.,Cushman F.,Hauser M.,Damasio A.Damage to the Prefrontal Cortex increases Utilitarian Moral Judgements.Nature. 2007;446:908-11.
90. Kok B. E.,Fredrickson B. L.Upward Spirals of the Heart: Autonomic Flexibility, as Indexed by Vagal Tone, Reciprocally and Prospectively predicts Positive Emotions and Social Connectedness.Biological Psychology. 2010;85:432-6.
91. Lehrman D. S.Critique of Konrad Lorenz's Theory of Instinctive Behavior.Quarterly Review of Biology. 1953;28:337-63.
92. Lehrman D. S.Development and Evolution of Behavior. Aronson R.Tobach E.Lehrman D. S.Rosenblatt J. S., ed. San Francisco, CA: Freeman; 1970:17-52.
93. Levy N.Neuroethics: Challenges for the 21st Century. Cambridge: Cambridge University Press; 2007:.
94. Lewkowicz D. J.Sage Encyclopaedia of Perception. Goldstein. E., ed. Thousand Oaks, CA: Sage Publications; 2010:611-16.
95. Lewkowicz D. J.The Biological Implausibility of the Nature-Nurture Dichotomy & What It means for the Study of Infancy.Infancy. 2011;16:331-67.
96. Linquist S.,Machery E.,Griffiths P. E.,Stotz K.Exploring the Folk-biological Conception of Human Nature.Philosophical Transactions of the Royal Society B. 2011;366:444-53.
97. Lozada M.,D'Adamo P.,Fuentes M. A.Beneficial Effects of Human Altruism.Journal of Theoretical Biology. 2011;289:12-16.
98. Machery E.,Mallon R.The Moral Psychology Handbook. Doris J. M., ed. Oxford: Oxford University Press; 2010:3-46.
99. Macmillan M.An Odd Kind of Fame: Stories of Phineas Gage. Cambridge, MA: MIT Press; 2000:.
100. Mameli M.The Inheritance of Features.Philosophy of Biology. 2005;20:365-99.
101. Mameli M.On Innateness: The Clutter Hypothesis.Journal of Philosophy. 2008;55:719-37.
102. Mameli M.,Bateson P. P. G.Innateness and the Sciences.Biology and Philosophy. 2006;22:155-88.
103. Mameli M.,Bateson P.An Evaluation of the Concept of Innateness.Philosophical Transactions of the Royal Society B. 2011;366:436-43.
104. Mameli M.,Papineau D.The New Nativism: a Commentary on Gary Marcus's The Birth of the Mind.Biology and Philosophy. 2006;21:559-73.
105. Marcus G.The Birth of the Mind. New York: Basic Books; 2004:.
106. Marcus G.The Innate Mind. Carruthers P.Laurence S.Stich S., ed. Oxford: Oxford University Press; 2005:23-33.
107. Meaney M. J.Nature, Nurture, and the Disunity of Knowledge.Annals of the New York Academy of Sciences. 2001;935:50-61.
108. Mikhail J.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2008:81-91.
109. Moll J.,de Oliveira-Souza R.,Eslinger P. J.,Bramati I. E.,Mourao-Miranda J.,Andreiuolo P. A.,Pessoa L.The Neural Correlates of Moral Sensitivity: a Functional Magnetic Resonance Imaging Investigation of Basic and Moral Emotions.Journal of Neuroscience. 2002;22:2730-6.
110. Moll J.,de Oliveira-Souza R.,Zahn R.The Neural Basis of Moral Cognition: Sentiments, Concepts, and Values.Annals of the New York Academy of Sciences. 2008a;1124:161-80.
111. Moll J.,de Oliveira-Souza R.,Zahn R.,Grafman J.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2008b:1-17.
112. Moll J.,Krueger F.,Zahn R.,Pardini M.,Oliveira-Souza R.,Grafman J.Human Fronto-Mesolimbic Networks guide Decisions about Charitable Donation.Proceedings of the National Academy of Sciences. 2006;103:15623-8.
113. Moll J.,Zahn R.,de Oliveira-Souza R.,Krueger F.,Grafman J.The Neural Basis of Human Moral Cognition.Nature Reviews Neuroscience. 2005;6:799-809.
114. Moore D.The Dependent Gene: The Fallacy of 'Nature vs. Nurture'. New York: Holt; 2003:.
115. Moss L.What Genes Can't Do. Cambridge MA: MIT Press; 2003:.
116. Nichols S.Norms with Feeling: Toward a Psychological Account of Moral Judgment.Cognition. 2002;84:223-36.
117. Nichols S.Sentimental Rules: On the Natural Foundations of Moral Judgment. Oxford: Oxford University Press; 2004:.
118. Nowak M.Five Rules for the Evolution of Cooperation.Science. 2006;314:1560-3.
119. Nowak M. A.,with Highfield R.SuperCooperators: Evolution, Altruism and Human Behaviour, or, Why We Need Each Other to Succeed. Edinburgh: Canongate; 2011:.
120. Oyama S.The Ontogeny of Information: Developmental Systems and Evolution. Durham, NC and London: Duke University Press; 2000a[1985]:.
121. Oyama S.Evolution's Eye: A Systems View of the Biology-Culture Divide. Durham, NC and London: Duke University Press; 2000b:.
122. Oyama S,Griffiths P. E.,Gray R. D.Cycles of Contingency: Developmental Systems and Evolution. Cambridge, MA: MIT Press; 2001:.
123. Parry S.,Dupré J.Nature after the Genome. Oxford: Wiley-Blackwell; 2010:.
124. Pigliucci M.Phenotypic Plasticity: Beyond Nature and Nurture. Baltimore, MD: Johns Hopkins University Press; 2001:.
125. Piliavin J.,Charng H.-W.Altruism: a Review of Recent Theory and Research.Annual Review of Sociology. 1990;16:27-65.
126. Preston S. D.,de Waal F.Empathy: Its Ultimate and Proximate Bases.Behavioral and Brain Sciences. 2002;25:1-72.
127. Prinz J.The Emotional Construction of Morals. Oxford: Oxford University Press; 2007:.
128. Prinz J.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Sinnott-Armstrong W., ed. Cambridge, MA: MIT Press; 2008:.
129. Prinz J.Stich and His Critics. Murphy D.Bishop M., ed. Oxford: Blackwell; 2009:167-89.
130. Prinz J.Beyond Human Nature. New York: Penguin/Norton; 2012:.
131. Richards R.A Defence of Evolutionary Ethics.Biology and Philosophy. 1986;1:265-93.
132. Richards R.Darwin and the Emergence of Evolutionary Theories of Mind and Behavior. Chicago, IL: University of Chicago Press; 1987:.
133. Richards R.Biology and the Foundations of Ethics. Maienschein J.Ruse M., ed. Cambridge: Cambridge University Press; 1999:113-53.
134. Rilling J. K.,Gutman D. A.,Zeh T. R.,Pagnoni G.,Berns G. S.,Kilts C. D.A Neural Basis for Social Cooperation.Neuron. 2002;35:395-405.
135. Robert J. S.Embryology, Epigenesis and Evolution: Taking Development Seriously. Cambridge: Cambridge University Press; 2004:.
136. Rottschaefer W. A.,Martinsen D.Really taking Darwin Seriously: an Alternative to Michael Ruse's Darwinian Metaethics.Biology and Philosophy. 1990;5:149-73.
137. Ruse M.A Companion to Ethics. Singer P., ed. Oxford: Blackwell; 1991:500-10.
138. Samuels R.Nativism in Cognitive Science.Mind and Language. 2002;17:233-65.
139. Segerstråle U. C.Defenders of the Truth: The Sociobiology Debate. Oxford: Oxford University Press; 2001:.
140. Shea N.Genetic Representation explains the Cluster of Innateness-related Properties.Mind & Language. 2012;27:466-93.
141. Singer P.Ethics and Intuitions.The Journal of Ethics. 2005;9:331-52.
142. Singer T.,Lamm C.The Social Neuroscience of Empathy.Annals of the New York Academy of Sciences. 2009;1156:81-96.
143. Sinnott-Armstrong W.The Neuroscience of Morality: Emotion, Brain Disorders and Development. Cambridge, MA: MIT Press; 2008:.
144. Sober E.,Wilson D. S.Unto Others: The Evolution and Psychology of Unselfish Behavior. Cambridge, MA: Harvard University Press; 1998:.
145. Spencer J. P.,.Short Arms and talking Eggs: Why We should No Longer abide the Nativist-Empiricist Debate.Child Development Perspectives. 2009;3 (2): 79-87.
146. Stent G. S.Morality as a Biological Phenomenon: The Presuppositions of Sociobiological Research. Berkeley: University of California Press; 1980:.
147. Sterelny K.Moral Nativism: a Sceptical Response.Mind & Language. 2010;25:279-97.
148. Sterelny K.,Griffiths P.Sex and Death: An Introduction to Philosophy of Biology. Chicago, IL: University of Chicago Press; 1999:.
149. Stotz K.With Genes like That, Who needs an Environment? Postgenomics' Argument for the Ontogeny of Information.Philosophy of Science. 2006;73:905-17.
150. Stotz K.The Ingredients for a Postgenomic Synthesis of Nature and Nurture.Philosophical Psychology. 2008;21:359-81.
151. Stotz K.,Bostanci A.,Griffiths P. E.Tracking the Shift to "Post-Genomics".Community Genetics. 2006;9:190-6.
152. Street S.A Darwinian Dilemma for Realist Theories of Value.Philosophical Studies. 2006;127:109-66.
153. Suhler C. L.,Churchland P.Can Innate, Modular "Foundations" explain Morality? Challenges for Haidt's Moral Foundations.Theory Journal of Cognitive Neuroscience. 2011;23:2103-16.
154. Trivers R.The Evolution of Reciprocal Altruism.Quarterly Review of Biology. 1971;46:35-57.
155. Valdesolo P.,De Steno D.Manipulations of Emotional Context shape Moral Judgment.Psychological Science. 2006;17:476-7.
156. Verplaetse J.Localizing the Moral Sense: Neuroscience and the Search for the Cerebral Seat of Morality, 1800-1930. Dordrecht: Springer; 2009:.
157. Verplaetse J.,De Schrijver J.,Vanneste S.,Braeckman J.The Moral Brain: Essays on the Evolutionary and Neuroscientific Aspects of Morality. Dordrecht: Springer; 2009:.
158. West M. J.,King A. P.Settling Nature and Nurture into an Ontogenetic Niche.Developmental Psychobiology. 1987;20:549-62.
159. West-Eberhard M. J.Developmental Plasticity and Evolution. Oxford: Oxford University Press; 2003:.
160. Wheatley T.,Haidt J.Hypnotic Disgust makes Moral Judgments More Severe.Psychological Science. 2005;16:780-4.
161. Williams G. C.Adaptation and Natural Selection: A Critique of Some Current Evolutionary Thought. Princeton, NJ: Princeton University Press; 1996[1966]:.
162. Wilson D. S.,Wilson E. O.Rethinking the Theoretical Foundation of Sociobiology.Quarterly Review of Biology. 2007;82:327-48.
163. Wilson E. O.Sociobiology: The New Synthesis. Cambridge, MA: Harvard University Press; 1975:.
164. Wilson E. O.On Human Nature. Cambridge, MA: Harvard University Press; 1978:.
165. Young A.The Social Brain and the Myth of Empathy.Science in Context. 2012;25:401-24.
166. Zak P.The Moral Molecule: The Source of Love and Prosperity. New York: Penguin; 2012:.