The Problem of Personal Identity

The question of personal identity is at root the question, what does it take to be the same person through the kinds of changes that all of us experience and undergo in the course of our lives? Most people today maintain that the problem of personal identity got its first crisp formulation in the English philosopher John Locke. In fact, I think it's an older problem and we can see what the problem is in its essence. If we go right back to the 5th century BC where philosophers were already being lampooned by the comic playwright Epic Harmus for their argument.