If one takes a course in philosophy to-day at a British university, a discreet silence is usually observed about existentialism. Often the professors understand little of its methods or its doctrine. If their excuse in part is the inaccessibility in English of standard existentialist texts, it is true also that philosophers trained in the “critical philosophy” now in vogue feel a certain aversion to existentialism or, at all events, to the notion they have formed of it. If Christianity was a scandal to the Greeks and remains a scandal, as Dr. Brunner has recently told us, to contemporary humanists, existentialism is a scandal to the positivists. The latter are aware that the existentialists habitually trespass in the fields of religion, ethics, aesthetics and psychology, fields which, on the positivist view, should be reserved to other disciplines than philosophy, which has its own distinctive subject-matter and approach. They know that certain existentialists, notably Heidegger, provide a happy hunting ground for examples of “metaphysics.” They have heard that existentialism has sought to turn the tables on positivism by accusing it, if not of metaphysics, at all events of a barrenness of significant content, of a preoccupation with mere logistics which removes philosophy completely from men's business and bosoms. If the positivist accuses the existentialist of perpetrating “nonsense” in a technical sense, the latter retorts by accusing the positivist of reducing philosophy to nonsense in a pragmatic sense.