Goethe’s Colorful & Abstract Illustrations for His 1810 Treatise, Theory of Colors: Scans of the First Edition | IELTS, ESP, EAP and CALL | Scoop.it
From www.openculture.com - October 15, 2016 2:37 PM

The great Jewish philosopher Baruch Spinoza, it is said, drew his conceptions of god and the universe from his work as an optician, grinding lenses day after day.