The Concept of Anxiety
All of Kierkegaard's books have either a preface, dedication, or prayer at the beginning. This book includes a lengthy introduction. "The Concept of Anxiety" was published on exactly the same date as "Prefaces", June 17, 1844. Both books deal with Hegel’s idea of mediation. Mediation is a common thread throughout Kierkegaard’s works. His work up to this point was to show that faith was being mediated by knowledge. Here he takes up the questions of sin and guilt.
Max Horkheimer
In 1940, Horkheimer received American citizenship and moved to the Pacific Palisades district of Los Angeles, California, where his collaboration with Adorno would yield the "Dialectic of Enlightenment." In 1942, Horkheimer assumed the directorship of the Scientific Division of the American Jewish Committee. In this capacity, he helped launch and organize a series of five Studies in Prejudice, which were published in 1949 and 1950. The most important of these was the pioneering study in social psychology entitled The Authoritarian Personality, itself a methodologically advanced reworking of some of the themes treated in a collective project produced by the Institute in its first years of exile, Studies in Authority and Family. In the years that followed, Horkheimer did not publish much, although he continued to edit "Studies in Philosophy and Social Science" as a continuation of the "Zeitschrift." In 1949, he returned to Frankfurt where the Institute for Social Research reopened in 1950. Between 1951 and 1953 Horkheimer was rector of the University of Frankfurt. In 1953, Horkheimer stepped down from director of the Institute and took on a smaller role in the Institute, while Adorno became director. Horkheimer and Adorno were seen as the fathers of the Institute.