Critical Theory is a social science theory associated with the Frankfurt School, a renowned institute for social research founded in 1923. The theory extends certain philosophical elements, as well as psychoanalysis, into Marxism. Its leading members were Max Horkheimer, Theodor Adorno, and Herbert Marcuse. During the Nazi period the school dispersed and eventually regrouped in New York around the New School for Social Research (now New School University). In 1949 it moved back to Frankfurt, where Jürgen Habermas emerged as its foremost figure. Although Critical Theory is concerned with culture and modernism, it is basically inspired by Hegel and is quite opposed to Soviet Marxism. As Joel Whitebook, the author of