In an unpublished text from the early postwar period, Georges Canguilhem deals with Nietzsche’s maxim “Become who you are!” Is this “apparently contradictory formula of a philosopher full of contradictions” really only seemingly inconsistent? Canguilhem regards it as a norm whose supposed metaphysical or objective content dissolves upon further analysis. So he here discerns a new instance of the same potential confusion he had already addressed in his classical essay on The Normal and the Pathological (1943). According to him, the (...) formula “become who you are!” must not be misunderstood in a naturalistic sense, a tendency from which not even Nietzsche himself, Canguilhem thinks, was entirely free. Besides the French philosophy of his time, his philosophical inquiry into “Become who you are!” critically engages two classic German Nietzsche scholars, Ernst Bertram and Karl Jaspers, as well as the French interpreters of the latter’s philosophy of Existenz, Mikel Dufrenne and Paul Ricœur. Finally, the paper highlights Nietzsche’s specific importance for Canguilhem and the ambivalence in his privileged relationship to the German thinker. (shrink)