[W]e think of Being rigorously only when we think of it in its difference with beings, and of beings in their difference with Being. The difference thus comes specifically into view. If we try to form a representational idea of it, we will at once be mislead into conceiving of difference as a relation which our representing has added to Being and to beings. Thus the difference is reduced to a distinction, something made up by our understanding.
But if we assume the difference is a contribution made by our representational thinking, the question arises: a contribution to what? One answers: to bengs. Good. But what does that mean: "beings"? What else could it mean than: something that is? Thus we give to the supposed contribution, the representational idea of difference, a place within Being. But "Being" itself says: Being which is beings. Whenever we come to the place to which we were supposedly first bringing difference along as an alleged contribution, we always find the Being and beings in their difference are already there. It is as in Grimm's fairytale The Hedgehog and the Hare: "I'm here already." Now it would be possible to deal with this strange state of affairs--that Being and beings are always found to be already there by virtue of and within the difference--in a crude manner and explain it as follows: our representational thinking just happens to be so structured and constituted that it will always, so to speak over its own head and out of its own head, insert the difference ahead of time between beings and Being. Much might be said, and much more might be asked, about this seemingly convincing but also rashly given explanation--and first of all, we might ask: where does the "between" come from, into which the difference is, so to speak, to be inserted?
P. 62-63