say of such claims? We have already observed that intuition itself cannot suffice as a means adjudicating between conflicting claims, so we must look of mistaken. In beyond intuition to discover whether or not the intuitions were But when cases we previously considered, we could look to sense-experience. this does not suffice, where shall we turn? It would seem that we are forever prevented from knowing whether such claims are true or not. But even this conclusion would be premature: perhaps some of them are meaningless; perhaps some, though meaningful, are untestable ; and perhaps some, though they may not seem at first to be testable, will turn out to be so when their meaning has been more clearly set forth.