Metaphysics is a primary subject area in philosophy which investigates the nature, constitution, and structure of reality. It also deals with notions such as causation, time, modality (necessity and possibility), particulars and universals, and the relation of mind to body.
Details of the book by Geoffrey Klempner, including tw extracts: the preface, explaining the unusual circumstances and goals of the author, and the first chapter, consisting of a long meditation on two problems of existence. www.shef.ac.uk/uni/projects/ptpdlp/pathways/book.html
A philosophical apologetic, or argument from pure reason in answer to Immanuel Kant's challenge. Pure Philosophical Argument for the Existence of a Supreme Being (consisting of five a priori principles). www.philosophical-apologetic.com
A collaboratively edited article explaining several central metaphysical problems: the problem of objecthood, the problem of universals, and the mind-body problem. en.wikipedia.org/wiki/Metaphysics