A striking illustration of this is to be found in such a word as "Evolution." One may say of it that while it began as a formula, it continues as a fiat. Some invoke it with all the expectancy of a mediaeval magician commanding the attendance of his favourite spirits. Others approach it with a hushed reverence that is reminiscent of a Catholic devotee before his favourite shrine. In a little more than half a century it has acquired the characteristics of the Kismet of the Mohammedan, the Beelzebub of the pious Christian, and the power of a phrase that gives inspiration to a born soldier. It is used as often to dispel doubt as it is to awaken curiosity. It may express comprehension or merely indicate vacuity. Decisions are pronounced in its name with all the solemnity of a "Thus saith the Lord." We are not sure that even to talk about evolution in this way may not be considered wrong. For there are crowds of folk who cannot distinguish profundity from solemnity, and who mistake a long face for the sure indication of a well-stored brain. The truth here is that what a man understands thoroughly he can deal with easily; and that he laughs at a difficulty is not necessarily a sign that he fails to appreciate it, he may laugh because he has taken its measure. And why people do not laugh at such a thing as religion is partly because they have not taken its measure, partly from a perception that religion cannot stand it. Everywhere the priest maintains his hold as a consequence of the narcotizing influence of ill-understood phrases, and in this he is matched by the pseudo-philosopher whose pompous use of imperfectly appreciated formulae disguises from the crowd the mistiness of his understanding.