Full Idea
The two dichotomies which set the agenda in contemporary epistemology are the foundationalist-coherentist debate, and the internalist-externalist debate.
Gist of Idea
Modern epistemology centres on debates about foundations, and about external justification
Source
Paul O'Grady (Relativism [2002], Ch.4)
Book Reference
O'Grady,Paul: 'Relativism' [Acumen 2002], p.97
A Reaction
Helpful. Roughly, foundationalists are often externalists (if they are empiricists), and coherentists are often internalists (esp. if they are rationalists). An eccentric combination would make a good PhD.