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Philosophical Works · Chapter

XLIV explained

Descartes warns against assenting to what we do not clearly perceive, noting that even true judgments made without clear perception are unreliable.

What happens

Descartes warns against assenting to what we do not clearly perceive, noting that even true judgments made without clear perception are unreliable. He identifies memory as a frequent source of error, leading us to believe we understand things we do not truly know.

Free preview opens on this chapter — companions, themes, and character notes appear beside the text.

Narrative arc

Story tension across the book — this chapter sits in Exposition.

SetupEscalationAftermathClimax
  • Setup
  • Escalation
  • Breaking point
  • Aftermath
  • Closing

This passage marks the story's dramatic climax because it presents the precise moment of epistemological crisi…

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Themes in this chapter

  • Reason and Method

    The chapter underscores the necessity of clear perception for reliable judgment, a core aspect of Descartes' method.

  • Skepticism and Certainty

    Descartes critiques the false certainty derived from memory, reinforcing his skeptical approach to knowledge.

Characters to notice

  • Narrator

    The narrator reflects on the nature of judgment and the deceptive role of memory.

Key passages

  • “That we uniformly judge improperly when we assent to what we do not clearly perceive, although our judgment may chance to be true; and that it is frequently our memory which deceives us by leading us to believe that certain things were formerly sufficiently understood by us.”

    We always judge wrongly when we agree to something we don't clearly see, even if it happens to be true; our memory often tricks us into thinking we once fully understood things we didn't.

    Descartes argues that assent without clear perception is inherently flawed, and memory is a common source of this error.