Herbert Marcuse (1898-1979) was a philosopher and critical social theorist. He was a member of the Institute for Social Research, along with Theodor Adorno and Max Horkheimer. His best-known works are Reason and Revolution (1940); Eros and Civilization (1955); and One Dimensional Man (1964). His work exerted a profound influence on the New Left and the radical counterculture of the 1960s and 1970s.