Self-reference is a concept that involves referring to oneself or one’s own attributes, characteristics, or actions. It can occur in language, logic, mathematics, philosophy, and other fields.
Dick and his twin sister, Jane Charlotte Dick, were born six weeks prematurely on December 16, 1928, in Chicago, Illinois, to Dorothy (née Kindred; 1900–1978) and Joseph Edgar Dick (1899–1985), who worked for the United States Department of Agriculture.