Ahistorical commentators who too readily dismiss Nietzsche's interest in physiological questions (e.g., DeMan 1979: 119; Nehamas 1985: 120) miss the centrality of such ways of thinking to Nietzsche's naturalism and to the whole intellectual climate of the period. 'The naturalization of the image of man under the influence of natural science was the work of the materialist movement of the middle of the century' (Schnädelbach 1983: 229). In this regard, Nietzsche was very much a thinker of his times.
