THESE volumes contain the Gifford Lectures delivered in the University of Glasgow in Sessions 1900-1 and 1901-2. I have, however, rewritten most of them, and have added three lectures upon parts of the subject which I was not able to discuss with sufficient fullness.
I have attempted, so far as was possible within the limits of such a course of lectures, to give an account of those ideas of Greek philosophy which have most powerfully affected the subsequent development of theological thought. In doing so, I have had to make a selection of topics which may require some explanation, both as to what it includes and as to what it excludes. On the one hand, I have thought it best to confine myself mainly to the most important writers, to Plato and Aristotle, to the chief representatives of the Stoic philosophy, and to Philo and Plotinus among the Neo-Platonists; and I have made no attempt to deal with secondary