I Began with the power of the Church to grow young suddenly, when she is expected to grow old slowly, and remarked that this power in a creed was one which I could only conceive as thus regularly recurrent under two conditions : first, that it was really true; and second, that the power in it was more than mortal. In the ultimate sense, these are undoubtedly the reasons for what is a revolution that really returns like the revolution of a wheel. But among the secondary and superficial causes of this rejuvenation may be specially noted, I fancy, the very fact of which religious reformers have so constantly complained; I mean the complexity of the creeds. There is a sense in which the Faith is the simplest of religions; but there is another sense in which it really is by far the most complicated. And what I am emphasising here is that, contrary to many modern notions, it owes its victory over modern minds to its complexity and not its simplicity. It owes its most recent revivals to the very fact that it is the one creed that is still not ashamed of being complicated.