Tribal life, conditioned primarily by lack of government and the consequent need for cohesion, was the only source of a certain kind of trust, which bound men in groups, even though it was also haunted by the possibility of treachery. In the towns, there was specialization, no trust, and order based on fear.

DEFINE: Contrasts two distinct types of social cohesion: tribal trust (born of necessity, bound by group cohesion) versus urban order (based on specialization and fear rather than trust).

Diego Gambetta, Trust - Making and Breaking…, loc. 2078