Full Idea
It is simply not necessary in order for [the coherence] view to yield justification to suppose that cognitively spontaneous beliefs have some degree of initial or independent credibility.
Gist of Idea
A coherent system can be justified with initial beliefs lacking all credibility
Source
Laurence Bonjour (The Structure of Empirical Knowledge [1985], 7.2)
Book Reference
Bonjour,Laurence: 'The Structure of Empirical Knowledge' [Harvard 1985], p.147
A Reaction
This is thoroughly and rather persuasively criticised by Erik Olson. But he always focuses on the coherence of a 'system' with multiple beliefs. I take the credibility of each individual belief to need coherent assessment against a full background.