| Author: | Spinoza, Benedictus de, 1632-1677 |
| Subject: | B, Philosophy and religion, Free thought |
| Format: | Electronic text |
| Date issued: | 1997 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | On the Improvement of the Understanding [electronic resource] / Benedictus de Spinoza |