Transcription: Duco believed in a sort of hybrid system. In its way, a compromise between Ptolemy and Copernicus, according to which the planets moved round the Sun, but the Sun itself moved round a stationary Earth. Duco's system never became generally accepted. Kepler had unique talent in finding mathematical relationships. He looked for harmony everywhere. An admirable outlook for a man whose life was so troubled lacking in harmony. Kepler concentrated on the movements of the planet Mars, which Tucca had been carefully observing for over a quarter of a century. It was a fortunate choice. We now know that ... File Comment Made in Intimate Arts
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