The Harmony of the World

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American Philosophical Society, 1997 - Biography & Autobiography - 549 pages
"Johannes Kepler published Harmonies of the World in 1619. This was the summation of his theories about celestial correspondences, and ties together the ratios of the planetary orbits, musical theory, and the Platonic solids. Kepler's speculations are long discredited. However, this work stands as a bridge between the Hermetic philosophy of the Renaissance, which sought systems of symbolic correspondences in the fabric of nature, and modern science. And today, we finally have heard the music of the spheres: data from outer system probes have been translated into acoustic form, and we can listen to strange clicks and moans from Jupiter's magnetosphere." -- Amazon.com viewed August 11, 2020.
 

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I really appreciate the work of the authors, making this text accessible at no cost to modern English readers. It is slow reading for me, but really rewarding. One can understand Kepler's frame of mind and how he saw the world, and how this understanding provides the framework for his mathematical arguments.
I'm not a mathematician, but I do question whether all the illustrations are genuine or complete or correctly placed. I came across one or two sections where I had the feeling the diagrams weren't fully explained or supported by the text.
 

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Page xxxviii - write the book. Whether it is to be read by the people of the present or of the future makes no difference; let it await its reader for a hundred years, if God Himself has stood ready for six thousand years for one to study Him.""
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Page 483 - as long as I shall live. For from Him and through Him and in Him are all things,
Page 286 - (He is not far from every one of us; in Him we live, move and have our being.)

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