The present thesis intends the reconstruction of Nietzsche’s dialogue with the history of scepticism through the identification of his main sources. Such dialogue is constantly mediated by texts from authors contemporary to Nietzsche, therefore the reconstruction of the sources could not remain exclusively inside the sceptical tradition, but included frequently some post-Kantian authors. The fundamental claims of the present thesis are: Nietzsche was deeply acquainted with the history of scepticism; his work assumes this tradition in a very innovative manner; Nietzsche (...) not only associated himself instrumentally to scepticism, but tried to incorporate some of the essential commitments of the sceptical life to his understanding of philosophical life. (shrink)