The Life of Reason is by, for 10 points, which Spanish-born thinker who stated "Those who cannot remember the past are condemned to repeat it."
He wrote that to label an item as aesthetically pleasing required separating temporary and principle ideas in his work The Sense of Beauty. Though not Spinoza, he wrote that matter acts as the limit to what can be in his discussion of matter, essence, truth, and spirit. This author of The (*) Realms of Being discussed "common sense" as a phase of human progress and believed philosophy begins "in media res." His assertion that pragmatism trumps idealism was outlined in Skepticism and Animal Faith.  The Life of Reason is by, for 10 points, which Spanish-born thinker who stated "Those who cannot remember the past are condemned to repeat it."
He wrote that to label an item as aesthetically pleasing required separating temporary and principle ideas in his work
George {Santayana} [MB]