What one reviewer at amazon said about Dialogues Concerning Natural Religion:
Hume's thinking and writing is absolutely brilliant in his Dialogues concerning natural religion, in which he proves himself as being one of the most interesting authors in the history of western philosophy. These dialogues present a very exciting discussion between an orthodox/dogmatic believer (called Demea), a more philosophical defender of the design-argument or argument a posteriori (Cleanthes), and a scepticist (Philo). This confrontation is mainly concerned about the question whether the universe has, in one way or another, been created: if so, does it serve a purpose? As is being made clear, this question arises by means of the apparent function things in nature seem to have. So in a way it is a discussion about the teleological (means to ends) world-view (which has its roots in Aristotle's thinking). But not only these things are being discussed, also cosmology, dogmatism, the nature of human thought and its self-projection on things outside itself, theology,... Readers of this work have often asked themselves which one of the personalities in the discussion is defending Hume's own view (as J.C. Gaskin indicates), Hume himself is not saying it. My personal opinion is that it is probably Philo's position; his arguments seem to be the sharpest and most devastating ones, and after all he's having the final word. I think J.C.A. Gaskins edition is an interesting one because it collects not only one but several of Hume's writings on religion. It is a must for everyone who's seeking for an intelligent view on some of the most intriguiging aspects of religion, certainly because Hume's account is as actual as ever before.
Download Dialogues Concerning Natural Religion from Project Gutenberg
or find a hard copy