Letter on Humanism

clumsily enough. What still today remains to be said could perhaps become an impetus for guiding the essence of man to the point where it thoughtfully attends to that dimension of the truth of Being which thoroughly governs it. But even this could take place only to the honor of Being and for the benefit of Da-sein, which man ek-sistingly sustains; not, however, for the sake of man, so that civilization and culture through man's doings might be vindicated.

But in order that we today may attain to the dimension of the truth of Being in order to ponder it, we should first of all make clear how Being concerns man and how it claims him. Such an essential experience happens to us when it dawns on us that man is in that he ek-sists. Were we now to say this in the language of the tradition, it would run: the ek-sistence of man is his substance. That is why in Being and Time the sentence often recurs, "The 'substance' of man is existence" (pp. 117, 212, 314). But "substance," thought in terms of the history of Being, is already a blanket translation of ousia, a word that designates the presence of what is present and at the same time, with puzzling ambiguity, usually means what is present itself. If we think the metaphysical term "substance" in the sense already suggested in accordance with the "phenomenological destructuring" carried out in Being and Time (cf. p. 63, above), then the statement "The 'substance' of man is ek-sistence" says nothing else but that the way that man in his proper essence becomes present to Being is ecstatic inherence in the truth of Being. Through this determination of the essence of man the humanistic interpretations of man as animal rationale, as "person," as spiritual-ensouled-bodily being, are not declared false and thrust aside. Rather, the sole implication is that the highest determinations of the essence of man in humanism still do not realize the proper dignity of man. To that extent the thinking in Being and Time is against humanism. But this opposition does not mean that such thinking aligns itself against the humane and advocates the inhuman, that it promotes the inhumane and deprecates the dignity of man. Humanism is opposed because it does not set the humanitas

Martin Heidegger (GA 9) Basic Writings (1993)