The book covers a wide variety of theories proposed by philosophers like Plato, Descartes, Hume, Aristotle, etc. In view of these theories, Russell poses questions about the nature of reality and our perception of it.
While the book refrains from providing absolute solutions to the problems it describes, it excels in guiding the readers towards developing their own way of thinking.
This book is part of the Standard Ebooks project, which produces free public domain ebooks.