An Introduction to Philosophy: Perennial Principles of the Classical Realist Tradition - by Daniel J. Sullivan

An Introduction to Philosophy by Daniel J. Sullivan is written for both the general reader and the serious student. Its purpose is not merely to explain technical systems, but to awaken the sense of wonder that Aristotle describes as the beginning of the love of wisdom. With clarity and methodical structure, Sullivan presents the essential elements of philosophy in a way that is accessible without sacrificing depth.

The book opens with a historical survey, tracing the development of philosophical problems from their earliest origins. It then turns to the more concrete questions concerning man himself before progressing to the more abstract issues of human nature and man’s relation to the world. In this ordered progression, readers encounter philosophy not as a scattered collection of theories, but as a coherent and unified pursuit of truth.

Rooted firmly in the classical realist tradition of Plato, Aristotle, Augustine, and Aquinas, Sullivan highlights principles that remain perennially valid and vital. While maintaining the distinction between natural and revealed wisdom, he demonstrates how philosophical conclusions harmonize with and are elevated by the truths of revelation. The result is a work that shows philosophy to be far more than a classroom discipline. It is an indispensable tool for understanding reality and living well within it.

• Study philosophy through a clear and structured historical framework
• Engage both concrete and abstract questions about human nature
• Learn principles from the classical realist tradition
• Understand the relationship between natural reason and revealed truth

From the Book

Philosophy begins in wonder and leads the mind toward a disciplined love of wisdom.

Intended Audience

This book is ideal for college students, homeschool families, parish study groups, and general readers seeking a solid grounding in classical philosophy. It is especially well suited for those interested in the Thomistic and realist traditions.

It is not a specialized academic monograph, but a structured and accessible introduction designed to form the mind in disciplined reasoning and coherent thought.

Practical use cases include introductory philosophy courses, personal intellectual formation, and preparation for advanced theological or philosophical study.

FAQs

Is this book suitable for beginners?
Yes. It is written clearly for the general reader while still providing substantial content for serious students.

Does it follow a particular philosophical school?
Yes. It works within the classical realist tradition associated with Plato, Aristotle, Augustine, and Aquinas.

Does it address theology?
While primarily philosophical, it explains how philosophical reasoning complements and harmonizes with revealed truth.