Full Idea
The source of the concept of objective truth is interpersonal communication.
Gist of Idea
Objective truth arises from interpersonal communication
Source
Donald Davidson (Three Varieties of Knowledge [1991], p.209)
Book Reference
Davidson,Donald: 'Subjective, Intersubjective, Objective' [OUP 2001], p.209
A Reaction
This is a distinctively Davidsonian idea, arising out of Wittgenstein's Private Language Argument. We could go a step further, and just say that 'objectivity is a social concept'. Davidson more or less pleads guilty to pragmatism in this essay.