Principles of Philosophy | René Descartes

Principles of Philosophy

Extended Synopsis

In the foundational treatise Principles of Philosophy, legendary mathematician and philosopher René Descartes analyzes the structural parameters of 17th-century rationalism, the tactical division of reality into thinking and extended substances, and the systemic attempt to replace Scholastic physics with a geometric, mechanistic model of the universe. Originally composed in Latin in 1644, this specific 72-page hardcover library edition issued by SMK Books captures the essential principles and introductory letters of Descartes' sweeping masterwork. The author establishes an unyielding philosophical thesis: all physical phenomena in the natural world can be systematically deduced from a small set of self-evident metaphysical principles, meaning that science does not require occult qualities or Aristotelian forms, but demands a clear, mathematical understanding of matter and motion.

Rather than presenting a loose collection of essays, the text charts Descartes' absolute rational architecture across three core conceptual pillars. The paradigm of Cartesian epistemology and radical doubt outlines the foundational rules of rational inquiry, instructing the reader to methodically discard all inherited assumptions, sensory perceptions, and unverified beliefs. By reducing reality down to an unassailable core of consciousness—encapsulated by the historical assertion that the very act of thinking proves the existence of the self—this section establishes a pristine intellectual slate, utilizing absolute certainty and the clear, distinct ideas of reason to prove the ultimate existence of God and the external physical world.

Moving from the mind to nature, the treatise details the absolute division between two fundamental substances: res cogitans (thinking substance) and res extensa (extended substance). Descartes defines the physical universe strictly by extension—meaning it possesses length, breadth, and depth, and is entirely free of spiritual or teleological properties. By stripping matter of its medieval “essences,” this module establishes the foundational blueprint for modern physical science, framing the material world as a vast, interconnected geometric canvas. The treatise climbs to its structural peak by defining the mechanical laws that govern this extended universe, rejecting the concept of a vacuum and outlining early formulations of inertia and the conservation of motion. This premium SMK Books hardcover printing remains an essential reference asset for university philosophy collections and historical scientific repositories.

Accolades & Praise

“A foundational pillar of early modern philosophy. Descartes’ systematic reduction of the physical universe to clear mathematical principles effectively dismantled Scholasticism and paved the way for the scientific revolution.”
— The Metaphysical Review

Author Biography

René Descartes (1596–1650) was a seminal French philosopher, mathematician, and scientist widely regarded as the father of modern Western philosophy. His breaking of scholastic tradition with works such as Meditations on First Philosophy and Discourse on the Method established the framework for Cartesian rationalism. As a mathematician, his development of analytic geometry bridged the gap between algebra and geometry, forming a critical baseline for modern calculus and physical sciences.

Reader Targeting

• Students, academics, and researchers specializing in early modern philosophy, epistemology, metaphysics, and the history of science.
• Analytical readers seeking a precise, core-text distillation of Cartesian dualism and mechanistic cosmological laws.
• University libraries, reference archives, and collectors expanding their repositories of foundational rationalist literature.

Bibliographic & Physical Specifications

Frequently Asked Questions

What historical documents are appended to this edition of the Principles of Philosophy?
This volume features the author's essential introductory letter to the French translator, which serves as a preface, alongside Descartes' celebrated epistolary dedication to Princess Elizabeth of Bohemia.

Does this text contain Descartes' complete scientific works?
No. This 72-page library edition is a highly distilled text block engineered to focus strictly on the foundational metaphysical articles, primary prefaces, and structural overviews of his mechanical universe layout.

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