Early inquiries into the nature of social relations featured in the work of
sociologists such as
Max Weber in his theory of
social action, where social relationships composed of both positive (affiliative) and negative (agonistic) interactions represented opposing effects.
Categorizing social interactions enables observational and other social research, such as
Gemeinschaft and Gesellschaft (), collective consciousness, etc. Ancient works which include manuals of good practice in social relations include the text of
Pseudo-Phocylides, 175–227,
Josephus' polemical work
Against Apion, 198–210, and the deutero-canonical Jewish
Book of Sirach or
Ecclesiasticus, . More recent research on social behaviour has demonstrated that newborn infants tend to instinctually gravitate towards prosocial behaviour. As obligate social apes, humans are born highly
altricial, and require an extended period of post-natal development for cultural transmission of social organization, language, and moral frameworks. In linguistic and anthropological frameworks, this is reflected in a culture's
kinship terminology, with the default mother-child relation emerging as part of the
embryological process. == Forms of relation and interaction ==