It is only those who know how to feel that this is not good who devise improvements.
ATTRIBUTION:
Friedrich Nietzsche (18441900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 3, p. 514, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). The Gay Science, first edition, Third Book, aphorism 243, The Origin of Good and Bad, (1882).