Nietzsche on Kant’s fundamental correctness: “reason does not derive its laws from nature but prescribes them to nature.”
Source: Friedrich Nietzsche, Human All Too Human, A Book for Free Spirits [1878]. Related: On the related context of Nietzsche’s provocative claim:
Related: On Nietzsche’s place in the historical course of philosophy: Explaining Postmodernism: Skepticism and Socialism from Rousseau to Foucault (print or e-book), or audiobook: