J. L. Austin claims that to say something is to do something and divides all utterances into performative utterances (henceforth performatives) and constative utterances (henceforth constatives). Then, he endeavors to establish a criterion for distinguishing performatives and constatives, but he fails to do so. As a result, he abandons the criterion for separating utterances into performatives and constatives, and reaches a conclusion that all utterances are performatives. But his analysis of utterances causes an infinite regress, which means that his logic collapses.