The mathematical is that evident aspect of things within which we are always already moving and according to which we experience them as things at all, and as such things. The mathematical is this fundamental position we take toward things by which we take up things as already given to us, and as they must and should be given. Therefore, the mathematical is the fundamental presupposition of the knowledge of things.
Martin HeideggerAnd so man, as existing transcendence abounding in and surpassing toward possibilities, is a creature of distance. Only through the primordial distances he establishes toward all being in his transcendence does a true nearness to things flourish in him.
Martin HeideggerA boundary is not that at which something stops, but that from which something begins.
Martin HeideggerBeing-alone is a deficient mode of being-with; its possibility is a proof for the latter.
Martin HeideggerWhy are there beings at all instead of nothing? That is the question. Presumably it is not arbitrary question, "Why are there beings at all instead of nothing"- this is obviously the first of all questions. Of course it is not the first question in the chronological sense [...] And yet, we are each touched once, maybe even every now and then, by the concealed power of this question, without properly grasping what is happening to us. In great despair, for example, when all weight tends to dwindle away from things and the sense of things grows dark, the question looms.
Martin Heidegger