Metaphysics," "Of Time."
With the chapters on Space and Time it would be well for the student to read Chapter XIV, "The Real World in Space and Time," where it is made clear why we have no hesitation in declaring space and time to be infinite, although we recognize that it seems to be an assumption of knowledge to declare the material world infinite.
An Introduction to Philosophy · The Wunder Library — complete classics, free to read, with narration.