| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Thus Spake Zarathustra A book for all and none | Nietzsche, Friedrich Wilhelm, 1844-1900 | en | Common, Thomas [Translator] | Superman (Philosophical concept); Philosophy | 1999-12-01 | ||
| The Concept of Nature The Tarner Lectures Delivered in Trinity College, November 1919 | Whitehead, Alfred North, 1861-1947 | en | Nature; Science -- Philosophy; Knowledge, Theory of | 2006-07-16 | |||
| The Number Concept Its Origin and Development | Conant, Levi Leonard | en | 2005-08-05 |