Heidegger: The Role of Logic in his Thought

Since his inaugural lecture at Freiburg in 1929 in which Heidegger delivered his most celebrated salvo against logic, he has frequently been portrayed as an anti-logician, a classic example of the obscurity resultant upon a rejection of the discipline of logic, a champion of the irrational, and a variety of similar things. Because many of Heidegger's statements on logic are polemical in tone, there has been no little misundersanding of his position in regard to logic, and a great deal of distortion of it. All too frequently the position which is attacked as Heidegger's is a barely recognizable caricature of it. We shall, therefore, attempt to determine precisely what Heidegger understands by logic. When he “attacks” logic, as he did in the inaugural lecture, as well as in many other of his writings, what “logic” is he attacking? The word “logic” is, after all, placed in quotation marks which would seem to indicate some special sense. This paper will argue that if one takes logic as it has traditionally been understood and practiced that one is forced to the conclusion that it is incompatible with Heidegger's “way of thought” (Denkweg). This rejection of logic, however, does not deliver him up to irrationalism or the enthronement of blind instinct in place of reason, as some of his critics have charged. Neither is it a self-indulgent refusal to achieve clarity and precision which ends in a kind of mystical pseudo-poetry. Rather, it will be argued, it represents a quite valid, and indeed rich, approach to Being, though certainly not a “logical” one in the traditional sense.