Empiricism vs Rationalism: Philosophical Foundations Explained

Empiricism: Knowledge Through Experience

Empiricism argues that at birth, the mind is a blank slate (tabula rasa). Everything we learn throughout our lives is acquired through experience, processed via the senses. Empiricists deny the possibility of spontaneous ideas, asserting that the object to be known takes priority over the subject.

If taken to its extreme, this theory results in skepticism. Skepticism posits that no knowledge is truly secure, criticizing any position that asserts the existence of absolute truth. While this mindset avoids errors and challenges naive assumptions, it often struggles to provide positive assertions.

The Empiricist Theory of Truth

Empiricism is associated with the correspondence theory of truth, which states that a proposition is true when it accurately corresponds to a factual event.

Key Representatives

• John Locke (1632–1704)
• David Hume (1711–1776)

This theory is strongly supported by the experimental sciences.

Rationalism: The Power of Reason

Rationalism is the philosophical viewpoint contrary to empiricism. It defends the existence of innate ideas, suggesting we are born with inherent knowledge. For rationalists, the subject—specifically the power of reason—is more important than the object being known.

The Rationalist Theory of Truth

This theory supports the coherence theory of truth, where a statement is considered true when it aligns with the subject's internal logical state.

Types of Propositions

• A priori: Knowledge independent of experience.
• A posteriori: Knowledge derived from experience.

Dogmatism and Rationalism

In its extreme form, rationalism can lead to dogmatism. While dogmatism provides a sense of security by believing it has settled on the truth, it can be negative because it often avoids questioning the validity of its own ideas, seeking instead to impose them. Dogmatism asserts that reality can be known definitively through reason.

Key Representatives

• René Descartes (1596–1650)
• Baruch Spinoza (1632–1677)
• Gottfried Wilhelm Leibniz (1646–1716)

For Descartes, concepts such as God, substance, and causality were considered innate ideas.