Famous quotes containing the words zone and/or material:
“The human race is a zone of living things that should be defined by tracing its confines.”
—Italo Calvino (1923–1985)
“The history of mankind interests us only as it exhibits a steady gain of truth and right, in the incessant conflict which it records between the material and the moral nature.”
—Ralph Waldo Emerson (1803–1882)