Mankind has created association as its general form of life. This was not, so to speak, the only logical possibility. The human species could just as well have been unsocial; there are unsocial animal species as well as social ones. Because of the fact of human sociality, however, we are easily misled into thinking that categories which directly or indirectly are sociological ones are the only, and universally applicable, categories in terms of which we may contemplate the contents of human experience. This notion, however, is completely erroneous.

Georg Simmel, on individuality and social…, loc. 210