Erich Fromm in the context of "Frankfurt School"

Theodor W. Adorno (/əˈdɔːrnoʊ/ ə-DOR-noh; German: [ˈteːodoːɐ̯ aˈdɔʁno] ; born Theodor Ludwig Wiesengrund; 11 September 1903 – 6 August 1969) was a German philosopher, musicologist, and social theorist. He was a leading member of the Frankfurt School of critical theory, whose work has come to be associated with thinkers such as Ernst Bloch, Walter Benjamin, Max Horkheimer, Erich Fromm, and Herbert Marcuse, for whom the works of Sigmund Freud, Karl Marx, and G. W. F. Hegel were essential to a critique of modern society. As a critic of both fascism and what he called the culture industry, his writings—such as Dialectic of Enlightenment (1947), Minima Moralia (1951), and Negative Dialectics (1966)—strongly influenced the European New Left.

In an intellectual climate shaped by existentialism and logical positivism, Adorno developed a dialectical conception of history and philosophy that challenged the foundations of both, anticipating the divide that would later emerge between the analytic and continental traditions. As a classically trained musician, Adorno studied composition with Alban Berg of the Second Viennese School, influenced by his early admiration for the music of Arnold Schoenberg. Adorno's commitment to avant-garde music formed the backdrop of his subsequent writings and led to his collaboration with Thomas Mann on the latter's novel Doctor Faustus (1947), while the two men lived in California as exiles during the Second World War. Working at the newly relocated Institute for Social Research, Adorno collaborated on influential studies of authoritarianism, antisemitism, and propaganda that would later serve as models for sociological studies the institute carried out in post-war Germany.

Psychoanalysis is a set of theories and techniques of research to discover unconscious processes and their influence on conscious thought, emotion and behavior. Based on dream interpretation, psychoanalysis is also a talk therapy method for treating mental disorders. Established in the early 1890s by Sigmund Freud, it takes into account Darwin's theory of evolution, neurology findings, ethnology reports, and, in some respects, the clinical research of his mentor Josef Breuer. Freud developed and refined the theory and practice of psychoanalysis until his death in 1939. In an encyclopedic article, he identified its four cornerstones: "the assumption that there are unconscious mental processes, the recognition of the theory of repression and resistance, the appreciation of the importance of sexuality and of the Oedipus complex."

Freud's earlier colleagues Alfred Adler and Carl Jung soon developed their own methods (individual and analytical psychology); he criticized these concepts, stating that they were not forms of psychoanalysis. After the author's death, neo-Freudian thinkers like Erich Fromm, Karen Horney and Harry Stack Sullivan created some subfields. Jacques Lacan, whose work is often referred to as Return to Freud, described his metapsychology as a technical elaboration of the three-instance model of the psyche and examined the language-like structure of the unconscious.

Character orientation is how people relate to the world by acquiring and using things (assimilation) and by relating to self and others (socialization), and they can do so either nonproductively or productively. Erich Fromm was a theorist who came up with five different character orientations: Receptive, Exploitative, Hoarding, Marketing and Productive.

Weimar culture was the emergence of the arts and sciences that happened in Germany during the Weimar Republic, the latter during that part of the interwar period between Germany's defeat in World War I in 1918 and Hitler's rise to power in 1933. 1920s Berlin was at the hectic center of the Weimar culture. Although not part of the Weimar Republic, German-speaking Austria, and particularly Vienna, is also sometimes included as part of Weimar culture.

Germany, and Berlin in particular, was fertile ground for intellectuals, artists, and innovators from many fields during the Weimar Republic years. The social environment was chaotic, and politics were passionate. German university faculties became universally open to Jewish scholars in 1918. Leading Jewish intellectuals on university faculties included physicist Albert Einstein; sociologists Karl Mannheim, Erich Fromm, Theodor Adorno, Max Horkheimer, and Herbert Marcuse; philosophers Ernst Cassirer and Edmund Husserl; political theorists Arthur Rosenberg and Gustav Meyer; and many others. Nine German citizens were awarded Nobel Prizes during the Weimar Republic, five of whom were Jewish scientists, including two in medicine. Jewish intellectuals and creative professionals were among the prominent figures in many areas of Weimar culture.