Belief in freedom of will is a primary error committed by everything organic, as old as the impulse to the logical itself; belief in unconditioned substances and in identical things is likewise a primary, ancient error committed by everything organic. Insofar, however, as all metaphysics has had principally to do with substance and freedom of will, one may designate it the science that treats of the fundamental errors of mankind — but does so as though they were fundamental truths.
Friedrich Nietzsche, Human, All Too Human, 18









