Confrontation is genuine criticism. It is the supreme way, the only way, to a true estimation of a thinker. In confrontation we undertake to reflect on his thinking and to trace it in its effective force, not in its weakness. To what purpose? In order that through the confrontation we ourselves may become free for the supreme exertion of thinking.  –Nietzsche p.4; rr10æhh (see Heidegger’s Nietzsche ISBN-0060638419)