Denis McManus

Recently the attempt has been made to demonstrate Heidegger's relevance to the concerns of analytic philosophers. A focus for this effort has been the criticism in his early work of Cartesian ontology. While a number of important works have mapped out this area of Heidegger's thought, a crucial task has not been carried out, namely that of assessing how Heidegger can accommodate those phenomena which motivate the Cartesian to adopt his highly counter-intuitive ontology. As long as we fail to examine how Heidegger's early ontology copes with the possibilities of error and of hallucination, the suspicion will remain that Heidegger is simply insensitive to those phenomena on which the Cartesian focuses. Neither Heidegger nor the Cartesian have been done any favours by commentators showing little inclination to bring the opponents into closer combat. This paper attempts to correct that omission

This paper identifies a problem that Aristotle revealed and that Heidegger’s own insights, into the diverse forms that the Being of entities takes, exacerbated: the problem is whether there is sense to the idea of ‘Being in general’—‘Being as a whole’—and this is a problem because there not being such sense threatens the very possibility of the discipline of ontology. The paper proposes that Heidegger envisaged the project which a completed Being and Time would have carried out as an attempt to solve this problem. The project considers what the subject who intends ‘Being as a whole’ would have to be like; crucially this requires reflection on what it would be for that subject itself to be a whole; and we find such reflection in Heidegger’s discussion of authenticity. By looking in particular at his notions of ‘guilt’ and ‘Being-towards-death’, and the role that they play in identifying an ‘ecstatic’ form of temporality, we can identify a ‘horizon’ against which the authentic can be seen as ‘being-a-whole’ and as living in the light of an understanding of what might indeed be called ‘Being as a whole’.