Understanding Aristotle: Metaphysics, Physics, Ethics, and Politics
Aristotelian Knowledge
Propaedeutic Knowledge: Logic
Aristotle’s philosophy begins with the study of dialectic, later called Logic. For Aristotle, logic isn’t a science itself, but a tool for scientific inquiry. His treatises on logic, called Organon (Greek for ‘instrument’), include: Categories, Interpretation, Prior Analytics, Posterior Analytics, Topics, and Sophistical Refutations.
Theoretical Knowledge
Theoretical knowledge aims to understand the nature of reality. Aristotle and his followers (the Peripatetics) divided this knowledge into three branches:
- First Philosophy/Theology (Metaphysics): Studies being as being, discussed in fourteen books compiled after his works on physics (hence the name Metaphysics, meaning ‘after physics’).
- Physics (Second Philosophy): Studies physis, or nature. It encompasses fields like cosmology, astronomy, meteorology, biology, and psychology. It focuses on beings with an inherent principle of motion or change.
- Mathematics: Studies unchanging and non-substantial beings like numbers and geometrical figures, which exist in the mind and are embodied in natural things.
Knowledge Ordered to Action
Knowledge can also be directed towards action, divided into praxis (actions that perfect the actor) and poiesis (actions that produce external objects). For example, making a gun is poiesis, while deciding whether using it is morally right is praxis.
- Poetic Knowledge (Poiesis): Encompasses techniques for creating material artifacts and persuasive speech (rhetoric). Aristotle’s works in this area include Poetics and Rhetoric.
- Practical Knowledge (Praxis): Includes Ethics (study of individual behavior), Economics (management of the household), and Politics (study of the state and government). Key works include Nicomachean Ethics and Politics.
Plato vs. Aristotle
Both Plato and Aristotle believed that true science studies universals. Aristotle distinguished between theoretical knowledge (desirable in itself) and practical knowledge (useful for its results). Wisdom, the highest form of knowledge, is the understanding of first principles or causes, which Aristotle called First Philosophy.
However, they differed on several key points:
- Nature of Reality: Plato believed true reality resided in transcendent, unchanging Ideas, while Aristotle saw reality in concrete, material things.
- Access to Knowledge: Plato emphasized rational knowledge and distrusted the senses, while Aristotle began with observation of the sensible world.
Metaphysics
Introduction
Aristotle’s Metaphysics isn’t a unified work, but a collection of fourteen books written at different times, resulting in some discontinuity.
Object of Study
Metaphysics studies being as being and its properties, unlike specific sciences that study particular kinds of beings. It examines fundamental concepts like substance, essence, existence, and cause.
Being and Substance
Substance is central to Aristotle’s metaphysics. It’s the underlying substrate that persists through change. The question of being is ultimately a question of substance.
Substance and Accidents
Accidents are modifications of substance. They depend on substance for their existence, while substance exists independently.
First and Second Substance
- First Substance: The individual, particular thing (e.g., Socrates).
- Second Substance: The species and genus (e.g., man, animal).
Science, as knowledge of universals, focuses on second substances.
Hylomorphism
Individual substances are composed of matter and form. This is known as hylomorphism.
- Matter: The underlying material.
- Form: The shape, essence, or organizing principle.
Critique of Plato’s Ideas
Aristotle criticized Plato’s theory of transcendent Ideas, arguing that the universal exists within things, not separate from them.
Physics
Purpose of Physics
Physics studies nature (physis), focusing on beings with an inherent principle of motion, such as animals, plants, and the four elements.
Concept of Nature
Nature is the inherent principle of motion and change in a being. It coincides with its form and essence.
Explanation of Change
Change involves a subject transitioning from privation of form to possession of form. This process is explained through the concepts of potency (potential) and act (actualization).
Substance as Potency and Act
Every substance has both potency (the potential to change) and act (its current state). Motion is the actualization of potency.
Types of Change
- Substantial Change: Generation and corruption of a substance.
- Accidental Change: Quantitative (growth/decline), qualitative (alteration), or locative (change of place).
Causes of Natural Things
Aristotle identified four causes:
- Material Cause: What something is made of.
- Formal Cause: The shape or essence.
- Efficient Cause: The agent of change.
- Final Cause: The purpose or goal.
Cosmology
Aristotle’s cosmology was geocentric, with a finite universe composed of concentric spheres. He distinguished between the sublunary world (subject to change) and the supralunar world (eternal and unchanging).
The Unmoved Mover
Need for a Prime Mover
Aristotle argued for a Prime Mover as the ultimate source of motion in the universe.
Characteristics of the Prime Mover
The Prime Mover is pure act, without any potency. It moves as a final cause, inspiring desire and motion in other beings. Its activity is pure thought, thinking of itself.
Ethics and Politics
Introduction
Aristotle’s ethics and politics are intertwined, focusing on achieving human happiness (eudaimonia) within a social context.
Eudaimonia
Eudaimonia is achieved through the development of rationality and virtuous habits.
Virtues and Ethos
Virtue is an excellence of character developed through habit (ethos).
Intellectual and Moral Virtues
- Intellectual Virtues: Excellences of understanding, such as practical wisdom and theoretical wisdom.
- Moral Virtues: Excellences of character, such as courage, temperance, and justice.
Virtue as the Mean
Virtue is the mean between two extremes, determined by reason.
The Political Animal
Humans are naturally social beings, and the state exists to promote the common good.
Justice and Forms of Government
Justice is essential for a well-ordered state. Aristotle identified different forms of government, with polity (a mixed constitution) being the most practical ideal.