He cited both biological and social transmission of sin: biological in that we inherit a physical nature with conflicting instincts, and with a great capacity for ignorance, both of which foster inertia and / or inappropriate behavior which, depending upon the degree of intelligence and will involved, lead to sin. (religion-online.org)
The effect of social transmission on real - world voting was greater than the direct effect of the messages themselves, and nearly all the transmission occurred between «close friends» who were more likely to have a face - to - face relationship. (epolitics.com)
In Contagious, Berger reveals the secret science behind word - of - mouth and social transmission. (jonahberger.com)