Eminent scholar of Cultural Studies, Stuart Hall, discusses race.
"Race is more like a language than it is like a way in which we are biologically constituted. Signifiers refer to the system and concepts of a classification of a culture to its making meaning practices. And those things gain their meaning not because of what they contain in their essence but in the shifting relations of difference which they establish with other concepts and ideas in a signifying field. Their meaning because it is relational and not essential can never be finally fixed, but is subject to the constant process of redefinition and appropriation."