It must be distinctly understood that all which we have said of the potency of Christianity as of "unwasting and secular force" is based upon the conception of it as a moral power "producing certain definite though small results during a certain period of time, and of a nature adapted to produce indefinite similar results in unlimited time." It is therefore eminently reasonable to point out that under no circumstances can it produce its full effects in less than _three complete generations_. By that time Christian heredity will have begun to operate. A clear perception of this fundamental truth would do much to abate the impatience alike of its promotors and its critics. There are some Occidentals with large knowledge of China who seriously raise the question, What good can Christianity do in China? Of what use is it for a Chinese to be "converted"? To infer from any phenomena of Chinese life that the Chinese do not need a radical readjustment of their relations is to judge most superficially. Patient and long continued examination of these phenomena in their endless variety and complexity, shows clearly the imperative necessity of a force from without to accomplish what all the forces from within operating unimpeded for ages have been powerless to effect. To those who know the Chinese people as they are the question what good Christianity can do them, answers itself. Of the necessity of a new power the Chinese themselves are acutely conscious. If what has been already set forth in proof of the proposition that there is imperative need of renovation is regarded as irrelevant or inadequate, then further debate is indeed vain.