This is a book that no one but Weyl could have written--and, indeed, no one has written anything quite like it since.

Space and time are the most fundamental features of our experience of the world, and yet they are also the most perplexing. Does time really flow, or is that simply an illusion? Did time have a beginning? What does it mean to say that time has a direction? Does space have boundaries, or is it infinite? Is change really possible? Could space and time exist in the absence of any objects or events? What, in the end, are space and time? (...) Do they really exist, or are they simply the constructions of our minds? Robin Le Poidevin provides a clear, witty, and stimulating introduction to these deep questions and many other mind-boggling puzzles and paradoxes. He gives a vivid sense of the difficulties raised by our ordinary ideas about space and time, but he also gives us the basis to think about these problems independently, avoiding large amounts of jargon and technicality. His book is an invitation to think philosophically rather than a sustained argument for particular conclusions, but Le Poidevin does advance and defend a number of controversial views. He argues, for example, that time does not actually flow, that it is possible for space and time to be both finite and yet be without boundaries, and that causation is the key to an understanding of one of the deepest mysteries of time: its direction. Drawing on a variety of vivid examples from science, history, and literature, Travels in Four Dimensions brings to life some of the most profound questions imaginable. (shrink)

Challenging, with several powerful arguments, some of our deepest beliefs about rationality, morality, and personal identity, Parfit claims that we have a false view about our own nature. It is often rational to act against our own best interersts, he argues, and most of us have moral views that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions (...) that most of us will find very disturbing. (shrink)

In this book, Lawrence Hatab provides an accessible and provocative exploration of one of the best-known and still most puzzling aspects of Nietzsche's thought: eternal recurrence, the claim that life endlessly repeats itself identically in every detail. Hatab argues that eternal recurrence can and should be read literally, in just the way Nietzsche described it in the texts. The book offers a readable treatment of most of the core topics in Nietzsche's philosophy, all discussed in the light of the consummating (...) effect of eternal recurrence. Although Nietzsche called eternal recurrence his most fundamental idea, most interpreters have found it problematic or needful of redescription in other terms. For this reason, Hatab's book is an important and challenging contribution to Nietzsche scholarship. (shrink)

The cyclical theory f time, which is better known under the name of the 'theory of eternal recurrence,' is usually associated with certain ancient thinkers--in particular, Pythagoreans and Stoics. The most famous among those who have tried to revive the theory in the modern era is unquestionably Friedrich Nietzsche. It is less well known that the theory was defended also by C.S. Peirce and, as late as 1927, by the French historian of science, Abel Rey. The contemporary discussion of the (...) problem of the direction of time has a direct bearing on the problem of eternal recurrence. The primary purpose of this paper is to evaluate critically the theory itself and then to show how this critical analysis can be applied to Peirce's own version of this theory. (shrink)