"Public opinion is presumptively an input to policy formation in a democracy because politicians respond to it or at least are believed to respond [to it]."

Previous Quote

Every function in the child's cultural development appears twice: first, on the social level, and later, on the individual level; first, between people (interpsychological) and then inside the child (intrapsychological). This applies equally to voluntary attention, to logical memory, and to the formation of concepts. All the higher functions originate as actual relationships between individuals.

— Lev S. Vygotsky