Philosophy Atlas

How Thinkers Disagree
Sign In
Text size
100%
Theme
Concept

The Ship of Theseus

The Ship of Theseus is a paradox of identity and persistence: if a ship has every one of its original planks replaced over time through repair, is the resulting vessel still the same ship? Recorded in Plutarch's Life of Theseus, where the Athenians preserved the ship by continually replacing decayed timber, the puzzle bears on the modern philosophical problems of personal identity and the relationship between material composition and identity over time. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Disputed
Origin Year
75 1
75 CE marks Plutarch's Life of Theseus, the earliest surviving text to record the puzzle; the underlying question of identity through change is older than Plutarch's own account of it, and no earlier attested source names it explicitly.
FAQs

If every plank of the Ship of Theseus is replaced, is it still the same ship?

A paradox of identity: if every original plank of a ship is replaced over time through repair, philosophers dispute whether the resulting vessel is still the same ship.

The Ship of Theseus is a paradox of identity and persistence: if a ship has every one of its original planks replaced over time through repair, is the resulting vessel still the same ship? It is recorded in Plutarch's Life of Theseus, where the Athenians preserved the ship by continually replacing decayed timber. The puzzle bears on the modern philosophical problems of personal identity and the relationship between material composition and identity over time.
Connections

Associated With

Source Ship of Theseus (Wikipedia)

In Branch

Source Ship of Theseus (Wikipedia)

Influenced By

Source Ship of Theseus (Wikipedia)
Sources
1. Ship of Theseus (Wikipedia)
Wikipedia
  • Introduction
    If no pieces of the original remained in the current ship, was it still the Ship of Theseus?
  • Influenced By: Thomas Hobbes, Hobbes's extension section
    The 17th-century philosopher Thomas Hobbes extended the thought experiment by supposing that a ship custodian gathered up all of the decayed parts as they were discarded and used them to build a second ship, then asked which of the two-the custodian's or the Athenians'-was the 'original' ship.
  • Associated With: Thomas Hobbes, Lead
    Seventeenth-century philosopher Thomas Hobbes further questioned how to consider a second ship that had been built entirely from pieces removed from the original.
View the Source
Comments (0)
No comments yet. Be the first to share a thought.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.