So the problem of existence through time,or persistence through time, shouldn't be called the problem of personal identity,but just the problem of identity.

所以积年累月下来存在的问题，就不该叫做个人认同感的问题，而仅是认同感的问题。

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What's the nature of persistence of identity over time?

同一性的持存本质是什么

耶鲁公开课 - 死亡课程节选