In the days when the Verifiability Principle was accepted by its devotees as a secure philosophical truth, one could understand, though one might not agree with, the sweeping claim that many of the traditional problems of philosophy had been shown to be mere ‘pseudo-problems’. It was easy to see how, given the Principle’s validity, most of the leading questions which agitated our forefathers in metaphysics, in ethics, and in theology, automatically become nonsensical questions. What is perplexing, however, is that despite the pretty generally acknowledged deterioration in the Principle’s status to that of a convenient methodological postulate, the attitude to these same questions seems to have changed but little. To admit that the Verifiability Principle is not an assured truth entails the admission that a problem can no longer be dismissed as meaningless simply on the ground that it cannot be stated in a way which satisfies the Principle. Whether or not a problem is meaningless is now something that can only be decided after critical examination of the particular case on its own individual merits. But the old antipathies seem in large measure to have survived the disappearance of their logical basis. One gets the impression that for at least many thinkers with Positivist sympathies the ‘liquidation’ of a large, if unspecified, group of traditional philosophic problems is still established fact. If that impression is mistaken, well and good. One may then hope for an early recrudescence of interest in certain problems that have too long suffered the consequences of an unhappy tabu. If the impression is correct, a real service would be done to philosophy if it were plainly stated which of the traditional problems are still regarded as pseudo-problems, and what are the reasons, old or new, for passing this sentence upon them. The smoke of old battles, perhaps understandably, darkens the philosophic air, to the considerable inconvenience of all concerned.