Stanford Encyclopedia of Philosophy_M.Heidegger_1_Biographical Sketch

1. Biographical Sketch

Martin Heidegger was born in Messkirch, Germany, on September 26, 1889. Messkirch was then a quiet, conservative, religious rural town, and as such was a formative influence on Heidegger and his philosophical thought. In 1909 he spent two weeks in the Jesuit order before leaving (probably on health grounds) to study theology at the University of Freiburg. In 1911 he switched subjects, to philosophy. He began teaching at Freiburg in 1915. In 1917 he married Elfride Petri, with whom he had two sons (Jörg and Hermann) and from whom he never parted (although his affair with the philosopher Hannah Arendt, his student at Marburg in the 1920s, is well-known).

Heidegger's philosophical development began when he read Brentano and Aristotle, plus the latter's medieval scholastic interpreters. Indeed, Aristotle's demand in the Metaphysics to know what it is that unites all possible modes of Being (or ‘is-ness’) is, in many ways, the question that ignites and drives Heidegger's philosophy. From this platform he proceeded to engage deeply with Kant, Kierkegaard, Nietzsche, and, perhaps most importantly of all for his subsequent thinking in the 1920s, two further figures: Dilthey (whose stress on the role of interpretation and history in the study of human activity profoundly influenced Heidegger) and Husserl (whose understanding of phenomenology as a science of essences he was destined to reject). In 1915 Husserl took up a post at Freiburg and in 1919 Heidegger became his assistant. Heidegger spent a period (of reputedly brilliant) teaching at the University of Marburg (1923–1928), but then returned to Freiburg to take up the chair vacated by Husserl on his retirement. Out of such influences, explorations, and critical engagements, Heidegger's magnum opus, Being and Time (Sein und Zeit) was born. Although Heidegger's academic and intellectual relationship with his Freiburg predecessor was complicated and occasionally strained (see Crowell 2005), Being and Time was dedicated to Husserl, “in friendship and admiration”.

Published in 1927, Being and Time is standardly hailed as one of the most significant texts in the canon of (what has come to be called) contemporary European (or Continental) Philosophy. It catapulted Heidegger to a position of international intellectual visibility and provided the philosophical impetus for a number of later programmes and ideas in the contemporary European tradition, including Sartre's existentialism, Gadamer's philosophical hermeneutics, and Derrida's notion of ‘deconstruction’. Moreover, although most philosophers in the Anglo-American (Analytic) tradition remain apprehensive about a work that can seem to have arrived from some distant intellectual shore, that particular climate of suspicion now seems significantly less entrenched than it once did. This shift in reception is in no small way due to the way in which Being and Time, and indeed Heidegger's philosophy in general, has been presented and engaged with by thinkers such as Dreyfus (e.g., 1990) and Rorty (e.g., 1991a, b) who work somewhere near the interface between the two traditions. A cross-section of broadly analytic reactions to Heidegger (positive and negative) may be found alongside other responses in (Murray 1978). Being and Time is discussed in section 2 of this article.

In 1933 Heidegger joined the Nazi Party and was elected Rector of Freiburg University, where, depending on whose account one believes, he either enthusiastically implemented the Nazi policy of bringing university education into line with Hitler's nauseating political programme (Pattison 2000) or he allowed that policy to be officially implemented while conducting a partially underground campaign of resistance to some of its details, especially its anti-Semitism (see Heidegger's own account in Only a God can Save Us). During the short period of his rectorship—he resigned in 1934—Heidegger gave a number of public speeches (including his inaugural rectoral address; see below) in which Nazi images plus occasional declarations of support for Hitler are integrated with the philosophical language of Being and Time. After 1934 Heidegger became increasingly distanced from Nazi politics. Although he didn't leave the Nazi party, he did attract some unwelcome attention from its enthusiasts. After the war, however, a university denazification committee at Freiburg investigated Heidegger and banned him from teaching, a right which he did not get back until 1949. one year later he was made professor Emeritus. Against this background of contrary information, one will search in vain through Heidegger's later writings for the sort of total and unambiguous repudiation of National Socialism that one might hope to find. The philosophical character of Heidegger's involvement with Nazism is discussed later in this article.

After Being and Time there is a reorienting shift in Heidegger's philosophy known as ‘the turn’ (die Kehre). Exactly when this occurs is a matter of debate, although it is probably safe to say that it is in progress by 1930 and largely established by the early 1940s. If dating the turn has its problems, saying exactly what it involves is altogether more challenging. Indeed, Heidegger himself characterized it not as a turn in his own thinking (or at least in his thinking alone) but as a turn in Being. As he later put it in a preface he wrote to Richardson's ground-breaking text on his work (Richardson 1963), the “Kehre is at work within the issue [that is named by the titles ‘Being and Time’/‘Time and Being.’]… It is not something that I did, nor does it pertain to my thinking only”. The core elements of the turn are indicated in what is now considered by many commentators to be Heidegger's second greatest work, Contributions to Philosophy (From Enowning), (Beitrage zur Philosophie (Vom Ereignis)). This uncompromising text was written in 1936–7, but was not published in German until 1989 and not in English translation until 1999. Section 3 of this article will attempt to navigate the main currents of the turn, and thus of Heidegger's later philosophy, in the light of this increasingly discussed text.

Heidegger died in Freiburg on May 26, 1976. He was buried in Messkirch.