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Plato, PhaedoPHIL 102, Hendricks, Fall 2015
The Death of Socrates, by Jacques-Louis David (1787), public domain on Wikimedia Commons
What we’ll discuss from Phaedo
• Plato’s idea of “the forms”
• Why, according to Socrates, the philosopher should not be afraid of death
• Arguments for why the soul continues after death
Quotes about “forms”Euthyphro p. 7
Phaedo pp. 6, 12
What are forms?• The essential nature of properties
that many things share (such as justice, beauty, goodness)o or the essential nature of a class of
things (such as triangles, circles, trees, humans)
About the forms• Universally, objectively true, never
changing
• Exist outside of our heads
• Grasped through reason, not senses
2+2=4180°
From Plato’s “Seventh Letter”
• Definition of the thing or property in words or thoughts
• Images or physical objects that have the form
• Knowledge of the truth about the form
• The form itself—only this is unchanging
Seen and unseen (12)Visible Invisible/intelligible
Physical objects, images, sounds
Forms
Grasped through senses
Grasped through reason
Compound/composite (multiple parts)
Simple unities
Changing, dissolvable
Unchanging, not dissolvable
Problems w/knowledge from senses
Sensible objects are changeable & not always purely “just,” “beautiful,” etc.
Can appear differently acc. to perspective
Why should we think forms exist?
• Mathematical truths
• Moral objectivism & moral relativismoConcerns with moral relativism?o Forms allow for moral objectivism
• Where do we get knowledge of perfect archetypes?
Fear of death
What reasons does Socrates give in Apology and Phaedo for why he’s not afraid of death?
What is the “soul” in Phaedo?
• Different from & separable from bodyoContinues after deathoCan be reborn into a new body
• The mind & reason, rather than “loves, lusts, fears…” (6)
Why philosophers should not fear death
• What is Socrates’ argument on pp. 4-7?
• Criticizing arguments:oAre the premises true or
likely to be true?o If we assume the
premises true, does the conclusion follow necessarily or with high probability? Socrates, British Museum, by
Marie-Lan Nguyen, on Wikimedia Commons, licensed CC BY 2.5
Arguments for soul continuing after death
• “Argument from Opposites” (9-11)o Talk about in discussion meetings
• “Argument from Affinity” (11-14)o See below…
Arg. from affinity1. There are two kinds of things: “the seen
and the unseen” (12)—see earlier slide• Seen is visible, changeable, dissolvable;
unseen is none of these2. The body is more like the seen, the soul
like the unseen• Soul invisible• When soul tries to get knowledge thru body
(senses), is confused; only gets truth by itself• Soul is naturally ruler: like divine
Therefore, the soul is “almost or altogether indissoluble” (14)