Johannes Kepler Quote
Repudiating the sensible world, which he neither sees himself nor believes from those who have, the Peripatetic joins combat by childish quibbling in a world on paper, and denies the Sun shines because he himself is blind.
Letter to Galileo Galilei, 28 March 1611. Johannes Kepler Gesammelte Werke (1937– ), Vol. 16, letter 611, l. 17–20, p. 372