Epistemology
Theory Of Knowledge
This guide helps you get your bearings in Theory Of Knowledge before you start exploring the interactive timeline, framework graph, and concept maps.
Before You Dive In
- The central question is deceptively simple: "What is knowledge?" The classical answer (justified true belief) has been debated since Plato and disrupted by Gettier in 1963.
- Start with the internalism vs. externalism debate — it splits the field and affects how you think about every other question.
- Skepticism isn't just a historical curiosity — responding to the skeptic is still a live constraint on any theory of knowledge.
- Epistemology connects directly to philosophy of science, ethics, and political philosophy — it's not an isolated subfield.
Key Terms to Know
Justified true beliefClassical definition of knowledge; challenged by Gettier's 1963 counterexamples.
FoundationalismView that some beliefs are self-justifying and support all other beliefs.
CoherentismView that beliefs are justified by their coherence with other beliefs, not by a foundation.
ReliabilismExternalist view that a belief is justified if produced by a reliable cognitive process.
Epistemic virtueCharacter traits (open-mindedness, intellectual courage) that make someone a good knower.
Common Confusions
Thinking epistemology is just "philosophy of science" — it covers everyday knowledge, testimony, memory, and perception too.
Assuming the Gettier problem was solved — it generated dozens of competing solutions and no consensus.
Confusing epistemological skepticism (a philosophical position) with everyday skepticism (doubting specific claims).
Recommended Reading
Epistemology: A Contemporary Introduction to the Theory of Knowledge— Robert Audi
2010Knowledge and Its Limits— Timothy Williamson
2000The Problems of Philosophy— Bertrand Russell
1912How to Use the Interactive View
1
Explore the timeline
Open the interactive view and scan the framework timeline. Which frameworks came first? Which ones overlap? Where are the big transitions?
2
Read the articles
Click into individual frameworks to read what each one claims, where it came from, and how it relates to its neighbors.
3
Check the concept map
See how the key ideas within a framework connect. This is useful for figuring out what to learn first and what depends on what.
4
Test yourself
Take the quiz for any framework you've read about. It's a quick way to find out whether you actually understood the core ideas or just skimmed them.