Philosophical Works · Chapter
CXC explained
Descartes distinguishes between internal and external senses, focusing on the internal senses: natural appetite (e.g., hunger, thirst) and the passions or emotions (e.g., joy, sadness, love, hate).
What happens
Descartes distinguishes between internal and external senses, focusing on the internal senses: natural appetite (e.g., hunger, thirst) and the passions or emotions (e.g., joy, sadness, love, hate). He explains how these sensations arise from the movement of nerves connected to the stomach and heart, and how the mind's intellectual judgments differ from the bodily passions that follow.
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 Falling action.
- Setup
- Escalation
- Breaking point
- Aftermath
- Closing
This passage marks the story's dramatic climax because it presents the precise moment of epistemological crisi…
Full beat labels and climax notes unlock in the reader.
Follow the arc while readingThemes in this chapter
- Mind-Body Dualism
The chapter emphasizes the distinction between intellectual joy (from the mind alone) and animal joy (from bodily motions), illustrating the interaction between mind and body.
Characters to notice
- Narrator
The narrator describes the distinction of senses and the mechanism of passions and natural appetites.
- René Descartes
Descartes presents his physiological and philosophical account of internal senses, passions, and natural appetites.
Key passages
“Thus, when we receive news, the mind first of all judges of it, and if the news be good, it rejoices with that intellectual joy ( gaudium intellectuale ) which is independent of any emotion ( commotio ) of the body, and which the Stoics did not deny to their wise man [although they supposed him exempt from all passion].”
When we hear good news, the mind initially feels an intellectual joy that does not involve any bodily change, a kind of joy even the Stoics allowed for their wise person, who they thought was free from passions.
Descartes distinguishes between pure intellectual joy and the bodily passion of joy, referencing Stoic philosophy.
“But as soon as this joy passes from the understanding to the imagination, the spirits flow from the brain to the muscles that are about the heart, and there excite the motion of the small nerves, by means of which another motion is caused in the brain, which affects the mind with the sensation of animal joy ( laetitia animalis ).”
Once the intellectual joy moves into the imagination, animal spirits travel from the brain to the heart muscles, moving tiny nerves and creating a second brain motion that gives the mind the feeling of bodily joy.
Descartes explains the physiological mechanism by which intellectual joy becomes a bodily passion.
