{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"On the Fourfold Root of the Principle of Sufficient Reason: And On the Will in Nature","author_name":"Arthur Schopenhauer","thumbnail_url":"https://www.ebooknetworking.net/books/114/277/big1142770443.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1142770443.html\">On the Fourfold Root of the Principle of Sufficient Reason: And On the Will in Nature</a>","width":400,"height":300}