Existence of God

Where it surfaces

• Prefatory Note by the Author

  The fourth part is dedicated to establishing the existence of God and the human soul as foundations of metaphysics.

• Discourse on the Method

  Descartes argues that the idea of a perfect being must originate from a perfect reality, leading to a proof of God's existence and His role as guarantor of truth.

• Meditations on the First Philosophy: In Which the Existence of God and the Immortality of the Soul Are Demonstrated

  God's existence is proved from the idea of a supremely perfect being; God is shown to be no deceiver and the guarantor of truth.

• Dedication

  Descartes asserts that proving God's existence by natural reason is essential for persuading infidels and establishing religious truth.

• Preface to the Reader

  Descartes defends his proof of God's existence from the idea of a perfect being, responding to objections.

• Synopsis of the Six Following Meditations

  The Third and Fifth Meditations present arguments for God's existence, including the idea of a perfect being and the ontological argument.

• Meditations on the First Philosophy

  God is presented as the guarantor of truth, and Descartes argues that knowledge of God is necessary for perfect knowledge of other things.

• Meditation I: Of the Things of Which We May Doubt

  The possibility of a deceiving God (or an evil demon) is introduced as a reason to doubt even the most evident truths, setting the stage for later proofs of God's existence.

• Meditation III: Of God: That He Exists

  The central theme of the meditation: Descartes argues that the idea of a perfect, infinite being cannot originate from his finite mind, and therefore must be caused by God, proving God's existence.

• Meditation IV: Of Truth and Error

  God's perfection and veracity are used to guarantee the truth of clear and distinct perceptions.

• Meditation V: Of the Essence of Material Things; and, Again, of God; That He Exists

  Descartes presents an ontological argument: because existence is a perfection and God is defined as supremely perfect, God must exist.

• Meditation VI: Of the Existence of Material Things, and of the Real Distinction Between the Mind and Body of Man

  God's veracity is used as the foundation for proving the existence of material things and ensuring the truth of clear and distinct perceptions.

• Selections from the Principles of Philosophy

  Descartes presents multiple proofs: from necessary existence contained in the idea of a perfect being, and from the objective perfection of the idea requiring a perfect cause.

• Letter of the Author to the French Translator of the Principles of Philosophy Serving for a Preface

  Descartes argues that God's existence is a necessary truth deduced from clear principles, and that God guarantees the truth of clear and distinct perceptions.

• In what sense the knowledge of other things depends upon the knowledge of God

  The chapter argues that certain knowledge of other things depends on first discovering the author of the mind's being.

• XIV

  The chapter argues that necessary existence is contained in the idea of an all-perfect Being, thus proving God's existence.

• XV

  Descartes argues that necessary existence is contained only in the idea of an all-perfect Being, proving God's existence.

• XVI

  The chapter focuses on the necessity of God's existence and how prejudice obscures this truth.

• XVII

  The principle that the cause must contain as much perfection as the effect is foundational to Descartes' argument for God's existence from the idea of a perfect being.

• XVIII

  Descartes infers God's existence from the presence of the idea of an all-perfect Being in the mind, arguing that such an idea must originate from an actually existing perfect being.

• XIX

  The chapter focuses on the clarity of God's perfections, reinforcing the idea that God's existence and attributes are known with greater certainty than physical things.

• Chapter XX

  Descartes argues that the idea of a perfect being must come from God himself, proving God's existence through the natural light of reason.

• XXI

  Descartes presents a proof of God's existence based on the need for a conserving cause for our continued existence.

• XXII

  The chapter presents the proof of God's existence from the innate idea of a perfect being, and shows that this same idea reveals His attributes.

• XXIII

  The chapter delineates God's nature as non-corporeal, without senses, and incapable of willing evil, reinforcing the concept of a perfect being.

• XXIV

  God is presented as the infinite author of all things and the true cause of all that exists, forming the foundation for knowledge of creatures.

• XXV

  The chapter emphasizes belief in God's revelations, affirming the necessity of faith in divine mysteries beyond human reason.

• Chapter XXVII: On the Indefinite and the Infinite

  The chapter reserves the term 'infinite' for God alone, emphasizing His unique status as a being without limits, which is central to Descartes' proof of God's existence.

• XXVIII

  God is presented as the efficient cause of all things, and the natural light is described as planted in us by God.

• XXIX

  Focuses on God's attribute of veracity, establishing that God cannot deceive or cause error, reinforcing the foundation for clear and distinct perceptions.

• The Guarantee of Truth Through God's Veracity

  God's veracity is used to guarantee the truth of clear and distinct perceptions, resolving the highest doubt.

• XXXVI

  The chapter addresses God's nature and his non-involvement in human error, touching on divine attributes.

• XXXVIII

  God's absolute dominion and goodness are central to the argument that He is not to blame for human errors.

• XL

  God's power and foreordination are central to the chapter's discussion.

• LI

  God is presented as the sole absolutely independent substance, foundational to the existence of all other things.

• LIV

  The chapter asserts that we have a clear and distinct idea of God as an absolutely perfect Being, and that denying this idea is groundless.

• Part II: Of the Principles of Material Things

  God's veracity is used to guarantee the existence of material things and the reliability of clear and distinct perceptions.

• I

  God's non-deceptive nature is used as a foundation for proving the existence of material things.

• Part III: Of the Visible World

  Descartes emphasizes the infinity of God's power and goodness as foundational for understanding the visible world.

• I

  The chapter underscores the necessity of acknowledging God's infinite power and goodness as a foundation for philosophizing about the natural world.

• II

  God's role as creator is central, and the chapter discusses the limits of human understanding of His purposes.

• III

  Descartes considers God's purposes in creation, arguing against the idea that all things were made solely for man.

• Part IV: Of the Earth

  God is invoked as the foundation of absolute certainty, ensuring that our clear and distinct perceptions are not fallacious.

• CCVI

  God's existence and attributes (supreme goodness, source of truth) are used as the metaphysical foundation for certainty.

• Appendix

  The chapter provides a geometrical proof of God's existence, arguing that necessary existence is contained in the idea of a supremely perfect being.