VERBUM DEI MANET IN AETERNUM · THE WORD OF GOD ENDURES FOREVER
Søren Aabye Kierkegaard (1813-1855)
Born to a prosperous Danish family and educated at Copenhagen, Søren Kierkegaard deliberately fostered his public reputation as a frivolous, witty conversationalist while suffering privately from severe melancholy and depression. In a series of (mostly pseudonymous) books, Kierkegaard rebelled against the prevailing Hegelianism of his time and developed many themes that would later be associated with the philosophy of existentialism. Much of his work, including Frygt og Bæven: Dialectisk Lyrik (Fear and Trembling) (1843), Begrebet Angest (The Concept of Dread) (1844), (Purity of Heart is to Will One Thing) (1847), and Sygdomen Til Døden (The Sickness unto Death) (1849), expressed a profound interest in religious issues. Kierkegaard also produced several more directly philosophical writings. Om Begrebet Ironi (The Concept of Irony) (1841) was his dissertation at the University of Copenhagen. Enten-Eller (Either-Or) (1843) provides an extended contrast between aesthetic and ethical ways of life, with emphasis on the ways in which radical human freedom inevitably leads to despair. The massive Afsluttende Uvidenskabelig Efterskrift (Concluding Unscientific Postscript) (1846) describes a third way of life, the possibility of living by faith in the modern world by emphasizing the importance of the individual and developing a conception of subjective truth. Kierkegaard's influence on twentieth-century thought has been rich and varied. Most obviously, existentialist thinkers like Jaspers and Heidegger drew extensively on his analysis of despair and freedom.
Martin Heidegger is acknowledged to be one of the most original and important philosophers of the 20th century, but also the most controversial. His thinking has contributed to such diverse fields as phenomenology (Merleau-Ponty), existentialism (Sartre, Ortega y Gasset), hermeneutics (Gadamer, Ricoueur), political theory (Arendt, Marcuse), psychology (Boss, Binswanger, Rolo May), theology (Bultmann, Rahner, Tillich), and postmodernism (Derrida). His main concern was ontology or the study of being. In his fundamental treatise, Being and Time, he attempted to access being (Sein) by means of phenomenological analysis of human existence (Dasein) in respect to its temporal and historical character. In his later works Heidegger had stressed the nihilism of modern technological society, and attempted to win western philosophical tradition back to the question of being. He placed an emphasis on language as the vehicle through which the question of being could be unfolded, and on the special role of poetry. His writings are notoriously difficult. Being and Time remains still his most influential work.
