The increasing body of literature in evolutionary psychology and neuroscience in the last ten years supports the following propositions:(1)There are much closer connections between rational choice and moral judgement than traditionally thought;(2)Such connections are formed during the long evolution of human society;(3)For human species the brain structure and the social structure are co\|evolutionary;(4)The psycho\|physiological foundation of moral judgement are “theory of mind” and social cognition;(5)The psycho\|physiological foundation of rational choice are episodic and semantic memory.These propositions have been explained in the so\|called the “third culture” rhetoric which differs from that of scientific(the first)culture and the humanity(the second)culture.The third culture is itself an interdisciplinary rhetoric and dialogue of logos.