Introduction to Philosophical Principles

Introduction to Philosophical Principles: Logic, Physics, and the Human Person

What good is living? I know a man we’ll call “James”—successful, secure in his career, his family, his hobbies, his religious belief—who claimed not that he was depressed at this stage of his life, but that he found himself nevertheless asking frequently: “Is this all there is?” Then he discovered philosophy. It was not an immediate love; indeed, it was discovered as a requirement for his graduate business program. But, seeking out help, he found more and more to read. More and deeper questions arose. He found his philosophical inquiries were not simply aligned with success in the course, but sprung up from his own life experiences, his own encounters with the world. He became philosophically curious. He wanted to know. To understand. A deeper reality opened up for him; one of inexhaustible meaning.

Philosophy—real, true philosophy—is transformative. It will not make you successful in the world, but it will answer a question that all the success and security never can: what is the good of being alive?

In the nihilistic, “post-truth” context of late modernity, we might despair of finding an answer to that question. The odds seem against us, especially in the absence of success and security. But even the faintest glimmer of the answer—the dimmest light—gives us something that cannot be taken away by the worst the world has to offer.

I first met James at a coffee shop in 2016 to help him with the graduate course. We have since met almost every week for six years—sometimes two or three times in the span of a few days—to discuss philosophy. Our talks have ranged over the distinctions of Plato and Aristotle, of Descartes and Locke, the neglect of scholasticism, the influence of Islamic thought, the value of the Conimbricenses, the genius of João Poinsot and Charles Sanders Peirce, the breadth of Thomas Aquinas, the nature of culture and society, the threats to truth, and much more besides. These conversations, deep though many of them are, have opened more inquiries than we will be able to explore in a lifetime.

This book, now in a second and much expanded edition (with over 100 pages of new material) does not mirror my conversations with James. But it does mirror the endless joy of discovering meaning, a condensed breadth of philosophical learning, and the desire to understand, to answer the question: what is the point of living?

I hope you will read it. I hope you will enjoy it. I hope it will spark a similar philosophical curiosity in you. The text is divided into three main parts: Logic, Physics, and the Person. Each presents what I think are the essential principles for gaining a habit of philosophical reflection. These three parts are supplemented by an extensive series of Glosses, which provide deeper questions and connections to the historical traditions of philosophy from which the ideas in the main text were composed. These glosses serve as suggestions of other places to look for questions about topics such as time, motion, knowledge, causality, signs, and more.

Maybe you don’t think it’s a book for you. I could try to convince you otherwise, but either you have a hunger to ask the question or you don’t. But even if you don’t think it’s for you, I bet you can think of someone in your life who does have that hunger. [Link to book]