Bird’s-Eye View of Philosophy
1 Logic / How should we think?
2 Epistemology / How do we know?
3 Metaphysics / What is real?
4 Ethics / How should we live?
5 Aesthetics / What is beauty?
1. Logic — The Study of Correct Reasoning
Core question: What makes an argument valid or invalid?
Logic teaches how to think clearly and evaluate arguments. Every philosopher relies on logic.
What it studies:
- Valid vs. invalid arguments
- Logical fallacies
- Deductive vs. inductive reasoning
- Argument structure
- Proof and inference
Main areas:
- Formal logic
- Informal logic
- Symbolic logic
- Mathematical logic
Why study it first:
Logic is the tool used in every other area of philosophy. It teaches you how to analyze ideas before deciding whether they are true.
2. Epistemology — The Study of Knowledge
Core question: How do we know anything?
Epistemology examines knowledge, belief, truth, and evidence.
What it studies:
- What counts as knowledge
- How beliefs become justified
- Truth vs. opinion
- Skepticism
- Sources of knowledge (reason, senses, experience)
Main areas:
- Skepticism
- Rationalism vs. empiricism
- Theory of truth
- Justification of belief
Why it comes second:
Before deciding what is real, philosophy asks how we know things in the first place.
3. Metaphysics — The Nature of Reality
Core question: What is real?
Metaphysics studies the fundamental structure of reality and existence.
What it studies:
- What existence means
- Time and space
- Free will vs determinism
- Mind and consciousness
- The nature of identity
- Whether God exists
Main areas:
- Ontology (study of being)
- Philosophy of mind
- Philosophy of religion
- Cosmology (philosophical)
Why it comes third:
After understanding knowledge, philosophy can examine what actually exists in reality.
4. Ethics — The Study of Right and Wrong
Core question: How should we live?
Ethics studies morality, values, and human behavior.
What it studies:
- Good vs evil
- Moral responsibility
- The good life
- Justice and fairness
- Moral rules and principles
Main areas:
- Normative ethics
- Virtue ethics
- Utilitarianism
- Deontology
- Applied ethics
Why it comes fourth:
Ethics builds on earlier ideas about human nature, knowledge, and freedom.
5. Aesthetics — The Philosophy of Beauty and Art
Core question: What is beauty?
Aesthetics studies art, beauty, taste, and creative expression.
What it studies:
- What makes something art
- Why people experience beauty
- Whether beauty is objective or subjective
- The meaning and value of art
Why it comes last:
Aesthetics often depends on deeper ideas about reality, perception, and values.