The Ship of Theseus
Replace a ship's planks one at a time until not one original piece is left. Is it still the same ship?
c. 75 CE (Plutarch's report of an older dispute)20 min read
English empiricism
John Locke
1632 – 1704
English philosopher and physician. The chapter "Of Identity and Diversity", added to the second edition of his Essay Concerning Human Understanding in 1694, separated the identity of a person from the identity of a man and of a substance, and grounded personal identity in continuity of consciousness. Every later psychological-continuity theory is a descendant of that chapter.