The dyed-in-the-wool teacher takes everything seriously only with respect to his studentshimself included.
(Friedrich Nietzsche (1844-1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 5, p. 85, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Beyond Good and Evil, "Fourth Part: Maxims and Interludes," section 63 (1886).)
True undoubting is the teacher's part, continual undoubting the part of the pupil.
(Franz Kafka (1883-1924), Prague German Jewish author, novelist. The Third Notebook, January 2, 1918. The Blue Octavo Notebooks, ed. Max Brod, trans. by Ernst Kaiser and Eithne Wilkins. Exact Change, Cambridge, MA (1991). Dearest Father: Stories and Other Writings, trans. by Ernst Kaiser and Eithne Wilkins, New York, Schocken Books (1954).)