The maker of phrases plies a dangerous trade. Very often his phrase is applicable for the moment and for the situation in view of which he coined it, but his coin has only a temporary validity: it is good for a month or for a year, or for whatever period during which the crisis lasts, and after that it lapses again into a mere token, a thing without value and without meaning. But the phrase cannot, as in the case of a monetary coinage, at once be recalled, for it has gone broadcast over the land, or, at any rate, it is not recalled, and it goes on being passed from hand to hand, its image and superscription defaced by wear, long after it has ceased to represent anything.