The Self: Perspectives, Essential vs Accidental, Dualism, and Ancient Philosophy

UNIT 1: The Self From Various Perspectives

Focus: Exploring what makes you, you; where the self comes from; how we know we remain the same over time.
Broader themes:
- Science can explain how our bodies and brains work (chemicals, hormones, genetics) but not necessarily the ‘why’ questions about meaning and identity.
- Science vs. Philosophy: science explains mechanisms; philosophy tackles questions like existence, purpose, and free will.

Core questions:
- What makes you, you?
- Where does your 'self' come from?
- How do you know you’re the same person you were last year?

Science explains: how bodies and brains work (mechanisms, chemistry, hormones, genetics).
Philosophy asks: why questions (purpose, meaning, identity, free will).
Examples of philosophical questions:
- Who am I really?
- Why am I here in this world?
- What is real?
- What happens when I die?

Definition: “Love of wisdom”; thinking about big questions in life.
Nature of questions: often lack easy answers; require critical thinking and questioning of assumptions.
Key examples of questions addressed in philosophy:
- Who am I really?
- Why am I here in this world?
- What is real?
- What happens when I die?

Core traits that define identity: a characteristic something must have in order to still be what it is.
If the essential property is missing, it is no longer that thing.
Characterization: these are the “must-haves” for identity.

Traits that can change without altering identity.
They are features the thing happens to have right now but could lose and still remain the same thing.
Characterization: these are the “changeable” properties.

Essential properties: like the core ingredient in a recipe; remove it and you get a different dish.
Accidental properties: like extra seasoning; you can remove them and it’s still the same dish.

Definition: the property of being interchangeable with other objects of the same kind.

Learning objectives for this module:
- 1. Learn what Philosophy is
- 2. Gain knowledge about the Body Theory
- 3. Recognize different Ancient Philosophers who pioneered the theory
- 4. Consider which philosophers influenced your own life philosophy

Notable figures introduced: Socrates; Plato.
Socratic idea emphasized here: Know Thyself.
Philosophers generally agree that self-knowledge is a prerequisite to a happy and meaningful life.

Core claim (Socrates): a person’s self is dualistic, composed of two parts:
- BODY: the physical material of the self.
- SOUL: the immaterial part containing our personal identity.

Plato’s addition: the soul is divided into three parts:
- Rational: Reason
- Spirited: Honor
- Appetite: Desire

1. OXYGEN
2. WATER
3. FOOD
4. [content incomplete in transcript]
Additional note: APPETITIVE SOUL stores our base desires (food, drinks, sleep, sex, etc.).

The three-part model provides a framework for understanding human motivation and behavior:
- Rational seeks truth and understanding.
- Spirited drives honor, reputation, and emotional energy.
- Appetitive drives physical needs and pleasures.

St. Augustine of Hippo follows Plato’s framework but adds Christian elements.
Augustine’s view: part of man dwells in the world and yearns to be divine, while another part is capable of immortality.
Relationship: Augustine integrates Christian concepts with Platonic dualism.

Area of a circle: A = \pi r^2
Circumference of a circle: C = 2\pi r
Trigonometric values (common angles):
- \sin(30°) = \tfrac{1}{2},\quad \sin(45°) = \tfrac{\sqrt{2}}{2},\quad \sin(60°) = \tfrac{\sqrt{3}}{2}
- \cos(30°) = \tfrac{\sqrt{3}}{2},\quad \cos(45°) = \tfrac{\sqrt{2}}{2},\quad \cos(60°) = \tfrac{1}{2}
- \tan(30°) = \tfrac{1}{\sqrt{3}},\quad \tan(45°) = 1,\quad \tan(60°) = \sqrt{3}
Indefinite integrals (examples):
- \int \sin x \, dx = -\cos x + C
- \int \tan x \, dx = -\ln|\cos x| + C
- Other typical forms (from the garbled content) may include: \int \frac{dx}{1+x^2} = \arctan x + C, etc.
Volume of a cylinder: V = \pi r^2 h
Some content in the transcript includes unrelated/mixed material (e.g., other algebraic lines and mixed symbols). The key, relevant formulas above are the ones intended to be captured.
Overall conceptual takeaway: the notes juxtapose a scientific description of the body with a philosophically grounded theory of the self, emphasizing essential vs. accidental properties, dualism, and the ancient quest to understand human identity.

Understanding essential vs. accidental properties helps in debates about personal identity over time: which features must persist to say a person remains the same.
Dualism encourages exploration of what parts of the self are changeable (habits, beliefs) versus what is intrinsic (perhaps core values or rational capacities).
Ancient philosophical perspectives (Socrates, Plato, Augustine) provide foundational language for discussions about self-knowledge, morality, and the meaning of life.
The distinction between science and philosophy highlights how different disciplines contribute to a holistic understanding of the self in modern contexts (psychology, neuroscience, ethics, spirituality).