Full Idea
We view beliefs both as states of the head explanatory of behaviour, and as items possessed of referential truth-conditions.
Gist of Idea
Beliefs are states of the head that explain behaviour, and also items with referential truth-conditions
Source
Colin McGinn (The Structure of Content [1982]), quoted by Mark Rowlands - Externalism Ch.6
Book Reference
Rowlands,Mark: 'Externalism' [Acumen 2003], p.108
A Reaction
McGinn wants to build a two-part account of meaning on this point, which Rowlands resists. Hume just wanted to define belief by a feeling, but it seems obvious that truth must also be involved.