In short, contextualism promises to deliver up a nice symmetry between the flexibility in our (alleged) judgments as to the truth of a given “knowledge” claim/denial, and a parallel plasticity in the truth conditions (hence, the truth values) of the ‘knowledge’ sentences we are prepared to assert. On the assumption that speakers realize, however tacitly, that what is expressed by an utterance of ‘S knows (/doesn’t know) that p’ is a context-sensitive matter, this explains the aforementioned flexibility in our “knowledge”-attributing behavior.