Kepler Quotes
Letter to Johannes Kepler (1610), as quoted in "The Crime of Galileo" by Giorgio De Santillana, 1955.
Samuel Taylor Coleridge, H. J. Jackson, Kathleen Coburn, Bart Keith Winer (1992). “Collected Works of Samuel Taylor Coleridge: Marginalia (5 v.)”, Bollingen
John William Draper (1973). “Scientific memoirs, being experimental contributions to a knowledge of radiant energy”, Ayer Co Pub