Since we astronomers are Priests of the Most High God with respect to the Book of Nature, it behooves us that we do not aim at the glory of our own spirit, but above everything else at the glory of God.
J. Kepler, Letter to Herwath von Hohenburg, 26.3.1598, n. 91, in Gesammelte Werke, (München: Beck, 1937–), vol. XIII, p. 193.