{"first_publish_date": "1992", "last_modified": {"type": "/type/datetime", "value": "2020-07-31T10:56:46.723899"}, "title": "On Schopenhauer's Fourfold root of the principle of sufficient reason", "created": {"type": "/type/datetime", "value": "2009-12-10T03:24:40.224434"}, "covers": [3969988], "lc_classifications": ["B3124 .W45 1991"], "subject_people": ["Arthur Schopenhauer (1788-1860)"], "key": "/works/OL3374892W", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL549936A"}}], "latest_revision": 4, "dewey_number": ["121/.3"], "type": {"key": "/type/work"}, "subjects": ["Will", "Sufficient reason", "Schopenhauer, arthur, 1788-1860"], "revision": 4}