Philolarps
Learn philosophy, from your first argument to graduate level
Free philosophy courses arranged as prerequisite ladders. Every article uses only terms an earlier one has defined, so you can start with no background and keep climbing. No account needed.
Start here
Never studied philosophy
Start with how arguments work. Everything else on the site assumes it.
What is an argument?
I know the basics
Formal machinery, the standard results, and the objections that stuck.
Intermediate index
I want the deep end
Metatheory, live disputes, and the primary literature.
Advanced index
Subjects
What there is, and what it is like.
What knowledge is, and when a belief counts as justified.
What follows from what, and how to prove it.
How words mean, refer, and do things, and what makes them mean anything at all.
Logic about logic: what validity is, where it comes from, and how we could know.
What makes actions right or wrong, and how the answers are defended.
What minds are, and how they fit into a physical world.
What there is, and how to tell what a theory says there is.
Questions about questions of existence: what ontology is doing, and whether it can be done.
Who gets to rule, on what terms, and within what limits.
Working out what the moral theories actually say about hard cases.
Whether there is a God, and what would count as a reason either way.
For philosophy teachers
Every article lists the articles it assumes and defines each new term in exactly one place, so you can set a single reading without first checking what your students already know. Each subject page is a numbered reading order that works as a ready-made syllabus, and with 151 articles free to read and no sign-up, a link is all a class needs.
Recently added
- Testimony and DisagreementEpistemology · Intermediate
- Epistemic InjusticeEpistemology · Intermediate
- Contextualism, Invariantism, and Pragmatic EncroachmentEpistemology · Advanced
- Knowledge-First Epistemology and Anti-LuminosityEpistemology · Advanced
- Epistemological Disjunctivism and the New Evil DemonEpistemology · Advanced