“Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.” ~ Aristotle I had the pleasure of watching the Academy …
Tag: copernicus
On the Revolutions of Heavenly Spheres by Nicolaus Copernicus
I was thumbing through the remarkable observations set down by Nicolaus Copernicus in his book On the Revolutions of Heavenly Spheres in the 1400s. You may recall that Copernicus abandoned the long-held Ptolemaic system, where the Earth was seen as being fixed in the center of the universe (geocentric) in favor of his mathematical proof that it in fact moved around the sun (heliocentric). …
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Gregory Hake 