“The same acting-out, the same loss of distance and the same fall into the real threatens thought too, as soon as it crosses the demarcation line which is that of its impossible exchange with truth, as soon as it comes to act out truth.
Thought must at all costs keep itself from reality, from the real projection of ideas and their translation into acts.
The Overman and the Eternal Return are, in this way, visions and they have the sovereignty of a hypothesis. If we try to turn them into acts or faits accomplis, they become monstrous and ridiculous.
The same goes for less visionary perspectives, such as biogenetic experimentation on the human species: as a hypothesis, this opens up all kinds of metaphysical and anthropological questions. But if we move from potential mutation to real projection (as Peter Sloterdijk does in his Menschenpark project), we lose all philosophical distance; and thought, in mingling with the real course of things, offers merely a false alternative to the operation of the system.
Thought must refrain from instructing, or being instructed by, a future reality, for, in that game, it will always fall into the trap of a system that holds the monopoly of reality.
And this is not a philosophical choice. It is, for thought, a life-and-death question.”