Empiricism: Knowledge Through Experience and Ideas
Empiricism: The Foundation of Knowledge
Empiricism, a philosophical stance, emphasizes that knowledge originates from sensory experience. It critiques doctrines that oppose this view, focusing on the validity of knowledge derived from our senses. If an idea stems from sense experience, it gains credibility, as experience forms the basis of all knowledge. Empiricists reject deductive reasoning and favor inductive methods based on the combination and association of ideas to form general statements.
The Role of Experience
While Mathematics may employ deductive methods, fields like Physics rely on truths constructed “post”, not “a priori”. Empiricists reject innate ideas, asserting that the mind has no preconceived notions before experience. Critical reason replaces the dogmatic reason of rationalists. Empiricists believe that reason is limited by experience.
Theory of Knowledge
Empiricism rejects a priori knowledge and innate ideas. All knowledge is derived from sensory experience. Locke defines an idea as any content in our mind, also an image or representation of reality. He categorizes ideas using an atomistic approach, moving from simple to complex ideas.
Classes of Ideas
- Simple Ideas: The mind receives these passively. They are the atoms of knowledge, indivisible into other ideas.
- Ideas of Sensation: Immediate perceptions captured by the senses, such as the green idea, caused by an external object. This is an extrinsic cause. Each sensation is a picture caused by an external body, deduced through the principle of causality.
- Ideas of Reflection: Originating from the mind’s activity, governed by innate laws, an intrinsic cause. Reasoning is an example.
- Ideas of Sensation and Reflection: Combinations of both, such as pleasure.
- Complex Ideas: Actively produced by combining simple ideas.
- Substance: The hypothetical support of qualities we perceive. We affirm the existence of self and ideas caused by foreign substances through causality. Locke accepts the Cartesian cogito. Sensations are involuntary, caused by an external infinite substance.
- Modes: Manifestations of a substance, referring to one substance.
- Relationships: Combinations of sensations through causal relationships to be objective.
Language and Concepts
Language refers to individuals, and abstraction is achieved through developing concepts. Locke is nominal, conceptual, and Ockham defended that language refers to individuals.