Strict Father / Nurturant Parent values
George Lakoff published Moral Politics in 1996, describing in detail how our political divisions between conservative and progressive can best be understood through a family metaphor of either the Strict Father or the Nurturant Parent. In 2004, he published Don't Think of an Elephant, a shorter moral readable version. Here are excerpts from that book which describe what he means.
Excerpts from Don-t Think of an Elephant.pdf