Full Idea
The best explanation for a stable system of beliefs which rely on observation is that the beliefs are caused by what they depict, and the system roughly corresponds to the independent reality it describes.
Gist of Idea
The best explanation of coherent observations is they are caused by and correspond to reality
Source
Laurence Bonjour (The Structure of Empirical Knowledge [1985], 8.3)
Book Reference
Bonjour,Laurence: 'The Structure of Empirical Knowledge' [Harvard 1985], p.171
A Reaction
[compressed] Anyone who links best explanation to coherence (and to induction) warms the cockles of my heart. Erik Olson offers a critique, but doesn't convince me. The alternative is to find a better explanation (than reality), or give up.