But this is very strange. For what would be the point of our testing our hypotheses at all if they earned no greater credibility by passing the tests? It is not just a matter of our abiding by the rules of a game. We seek justification for our beliefs, and the whole process of testing would be futile if it were not thought capable of providing it.
Philosophy in the Twentieth Century, page 134.
Ayer mistakes his yearning for justification (which generally comes from authority) with an epistemic necessity.