To foster an adequate understanding of relational sociology, it is necessary to consider the theoretical grounds upon which it is based. The first aspect to highlight is the realist assumption of social relations as the causal force from which society originates. It is upon this decisive dimension that the difference between non-contingent and contingent aspects of the social is founded. Overlooking this difference issues in an inadequate understanding both of the autonomy of, and of the interaction between, actors and social (...) structures. Moving from these considerations, in the second part of this essay I will consider a third foundational aspect of social relations: social relations as ‘determination’ of reciprocity, and conclude my investigation by tackling the crucial theme of the social time of change and its connection to social relations. (shrink)