This document discusses different philosophical views of the concept of self. It explores perspectives from Socrates, Plato, Immanuel Kant, Rene Descartes, John Locke, and David Hume. Socrates believed in knowing oneself. Plato saw the self as originally all-knowing but forgetting knowledge through earthly exile. Kant saw humans as directing their own actions. Descartes viewed the self as a thinking entity distinct from the body. Locke saw personal identity evolving over a person's life. Hume saw the self as a bundle of perceptions without a clear idea of itself.