“Know Thyself” emphasized self knowledge as a moral imperative
Socrates
The tripartite soul
Plato
governs reason and logic
Rational Soul
Source of emotions like anger and courage
Spirited soul
driven by desires, pleasure, and physical needs
Appetitive Soul
ideal self
Plato
The self in relation to god
Augustine of Hippo
For him, the self is fundamentally defined by its relationship with God
Augustine of Hippo
“Cogito, ergo sum”
Rene Descartes
Father of modern philosophy
Rene Descartes
Introduce radical doubt
Rene Descartes
res cogitans
mind
res extensa
body
The self as a bundle of perceptions
David Hume
an empiricist, rejected the idea of a stable, unchanging self
David Hume
The self is therefore not a substance, but a collection of experiences constantly in flux
David Hume
Memory and Consciousness
John Locke
that personal identity is founded on consciousness, not on the soul or body
John Locke
Self is a product of reflective consciousness, making self awareness central to identify
John Locke
The unified self
Immanuel Kant
distinguished between the empirical self (known through experience) and transcendental self (the necessary condition for experience)
Immanuel Kant
our mind actively shapes experience using priori concepts such as space and time
Immanuel Kant
organizing principle of all experience and knowledge — a unity of thought and perception
Immanuel Kant
The self as Brain Activity
Paul Churchland