Just as Darwinian adaptationists assume that every biological phenomenon must be explained in terms of natural selection (no matter how unconducive to reproductive fitness it may appear initially), so too Nietzsche assumes that whatever explains life must also explain these particular instances of life which appear hostile to it. "Life against life," Nietzsche says is a "self-contradiction" that "can only be apparent; it has to be a sort of provisional expression, an explanation, formula, adjustment, a psychological misunderstanding of something, the real nature of which was far from being understood"

"The Hermeneutics of Suspicion: Recovering Marx, Nietzsche, and Freud"