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| | Schopenhauer Biography (Site not responding. Last check: ) |
 | | Karl Hillebrand as "On the Fourfold Root of the Principle of Sufficient Reason," in Two Essays by Arthur Schopenhauer (London: Bell, 1889); translated by F. Payne in The Fourfold Root of the Principle of Sufficient Reason (Lasalle, Ill.: Open Court, 1974). |
 | | Ueber das Sehn und die Farben: Eine Abhandlung (Leipzig: Hartknoch, 1816; enlarged, 1854; edited by Frauenstädt, Leipzig: Brockhaus, 1870); chapter 1 translated by Payne as "On Vision," in The Fourfold Root of the Principle of Sufficient Reason, pp. |
 | | Edited by James Hardin, University of South Carolina and Christoph E. Schweitzer, University of North Carolina at Chapel Hill. |
| people.brandeis.edu /~teuber/schopenbio.html (3698 words) |
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