Plato’s Theory of Knowledge: Opinion, Truth, and the Soul’s Journey
Plato’s Theory of Knowledge
The Lower Knowledge: Opinion
Platonic View of Opinion
Human opinion is finite, involving the body and self, but not the spirit. The spirit remains uninvolved in this lower knowledge, akin to an unconscious mind. Opinion deals with transitional realities perceived through the senses, which are mere manifestations and secondary realities. However, in the realm of opinion, individuals mistakenly perceive these manifestations as primary realities due to their finite nature and their initial experience of the world.
Two Modes of Perception
Demonstrations can be known through the senses or through concepts. Sense-based knowledge relies solely on sensory data, while rational knowledge is obtained through reasoning with concepts. Rational knowledge, though dealing with unstable objects, offers a universal understanding, reflecting the universality of stable realities (ideas). This universality makes it a shadow of truth, a form of knowledge, though not wisdom.
The Higher Knowledge: Truth
Plato’s Concept of Truth
Truth, for Plato, is supernatural, connected to the superior aspects of humanity (the spirit) and the universe. The spirit, residing in the higher realm (topos Uranus), is the component capable of grasping Truth. Truth is the soul’s self-knowledge as spirit, attainable through internal “revival.” The superior aspect of the universe, according to Plato, is the realm of ideas. Thus, Truth’s purpose is to uncover the necessary facts that form the metaphysical foundation of the world (topos Uranus).
Achieving Truth and Overcoming Alienation
Initially, truth is unattainable due to the soul’s alienation and the concealment of ideas. Achieving truth requires overcoming both. Alienation and concealment are two aspects of the same phenomenon: the soul’s embodiment. When the soul, originating in topos Uranus where ideas are visible, enters the world, ideas become invisible. This concealment results from the soul’s estrangement from its true home. This process represents a loss of Being, as the soul loses its identity and ideas lose their visibility. Therefore, achieving truth means recovering this lost Being.
Two Types of Truth
Truth has two forms, corresponding to the two steps in overcoming alienation and concealment (recovering Being):
- Anamnesis (Recollection): The soul’s departure from its alienated state involves becoming aware of itself as spirit. This is achievable through purification. Upon leaving this state, the soul remembers the ideas (anamnesis). This recollection is an inferior form of truth, as alienation and concealment are not fully overcome. The soul, though aware, remains a stranger in the world, and ideas, though remembered, remain invisible.
- Nous (Insight): The soul’s return to topos Uranus marks the complete recovery of Being. This occurs after death, marking a transition to true life. Upon returning, the soul perceives ideas directly (nous). This noetic vision is the superior form of truth.