Full Idea
Lots of philosophers fear that if concepts don't have analyses, justification breaks down. My own guess is that concepts don't have analyses and that justification will survive all the same.
Gist of Idea
It seems likely that analysis of concepts is impossible, but justification can survive without it
Source
Jerry A. Fodor (In a Critical Condition [2000], Ch. 3 n2)
Book Reference
Fodor,Jerry A.: 'In Critical Condition' [MIT 2000], p.34