Altered opinions do not alter a man's character (or do so very little); but they do illuminate particular aspects of the constellation of his personality which had previously remained obscure and unrecognizable under another constellation of opinions.
Friedrich Nietzsche (1844–1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 2, p. 404, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Mixed Opinions and Maxims, aphorism 58 (1879).