| Why is Time Frame-dependent in Relativity? Essay subtitled 'Minkowski's spacetime as a Kantian 'condition of possibility' for relativistic calculations'. By M. Szirko. | |
| Time and Chance - Notre Dame Philosophical Reviews Nick Huggett reviews this book by David Z. Albert. | |
| Stanford Encyclopedia of Philosophy: Time Travel and Modern Physics The paradoxes inherent in the idea of time travel are explained in the context of modern physics; by Tim Maudlin. | |
| Stanford Encyclopedia of Philosophy: The Hole Argument The hole argument is an attempt to illustrate how spacetime substantivalism causes errors in a large class of spacetime theories; by John D. Norton. | |
| The Japan Internet Center for Process Studies Information about process metaphysics. | |
| The Center for Process Studies The Center for Process Studies was founded in 1973 to encourage exploration of the relevance of process thought, which is based on the philosophy of Alfred North Whitehead and Charles Hartshorne, to many fields of reflection and action. | |
| Stanford Encyclopedia of Philosophy: Existence Survey article by Barry Miller. | |
| Stanford Encyclopedia of Philosophy: Events Survey of philosophical views on the character and status of events; by Roberto Casati and Achille Varzi. | |
| Stanford Encyclopedia of Philosophy: Abstract Objects Survey of attempts to draw the distinction between concrete and abstract objects; by Gideon Rosen. | |
| The Shift of Aspect in Language and Thought Notes on the relational element in the assertion that things exist. Patterned on Wittgenstein's Philosophical Investigations. | |
| Qualia: The Knowledge Argument Aims to establish that conscious experience involves non-physical properties. It is one of the most discussed arguments against physicalism; from the Stanford Encyclopedia by Martine Nida-Rümelin. | |
| PhilSci Archive: Idealist Philosophy: What is Real ? Paper by Axel Randrup defending idealism and arguing that materialism leads to logical contradictions, which closes by considering the implications of this for religion. | |
| Metaphysics of Quality Robert M. Pirsig deals with the fundamentals of existence and attempts to provide a more coherent system for understanding reality than current paradigms allow. | |
| The Metaphysics of Blue On the nature of consciousness - looking for soul in a soulless world. | |
| Descriptive and Formal Ontology An extensive resource site on the development of ontology, especially in the twentieth century. | |
| Buffalo Ontology Site Information on ontology, on the history of ontology, and on contemporary ontology and its applications. | |
| Why Does Anything Exist? Sequence of short essays on this topic. | |
| What is Ontology? Collected definitions, from leading philosophical reference works and from philosophers from Wolff to Husserl. | |
| Stanford Encyclopedia of Philosophy: Tropes An article describing tropes; by John Bacon. | |
| Stanford Encyclopedia of Philosophy: The Identity of Indiscernibles A principle of analytic ontology first explicitly formulated by Leibniz. It states that no two distinct substances exactly resemble each other. | |
