Do you know who it is?

"He recognizes a natural and inexpungable metaphysical exigence to think beyond, to think the ultimate, even if we are denied "legitimated" theoretical knowing of its nature and being. Recall, for instance, his distinction between a "boundary" and a "limit." In our search for univocal knowing, there springs up an equivocal longing for what epistemically is denied to us. I see him bordering on a supreme tension: committed to respect what he saw as the limit, and yet impelled to think at the boundary of the limit, and indeed beyond; pulled on the one side back with the limit, driven out from finitude on the other side, but driven out without the relatively secure univocities of the former.

He is between finitude and infinity, though he often masks that intermediacy in a manner more intent on securing coherent univocity within the between, and letting the equivocal darkness beyond take care of itself. In truth, however, these two sides cannot be kept from each other in an uncontaminated purity."

Who is this person?