An examination of the most influential theoretical, pragmatic, and moral arguments regarding the existence and nature of God (or gods). Along the way, we consider debates about whether and how we can talk or think about such a being, and about whether mystical experience, miracles, and the afterlife are intelligible notions. Finally, we consider whether religious commitment might be rationally acceptable without any proof or evidence, and whether the real-world fact of religious diversity has philosophical implications. Course readings will be taken from both historical and contemporary sources.