A modern hallway with white doors and cabinets, offering elegant interior design.

Pick a door.

Epistemology, ethics, logic, and metaphysics tackle what we can know, how to live, how to reason, and what exists. Choose your four doors.

Philosophy’s Core Branches: Four Doors Into Big Questions

Two students reading books indoors, focused on learning and knowledge.

Epistemology: what is knowledge?

It asks how truth, belief, and justification fit together and how we acquire knowledge. The notorious Gettier problem keeps it spicy.

Philosophy’s Core Branches: Four Doors Into Big Questions