Thinking Clearly is your introduction to philosophy in the Catholic tradition and a guide to having difficult conversations about faith, morality, the human person, and more, using natural human insights.
Philosophy is the study of what can be known by universal experience, so the ground from which philosophy starts is as common as you can get. Once you initiate a philosophical discussion, though, it's up to you to show how that discussion can end up at God. Ultimately, that's where good philosophy leads, and this book will help you get started.