[Excerpt of a Letter of William Ballantyne Hodgson to Francis William Newman.]

5th June, 1870

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        The whole subject of the relations of the sexes much henceforward be treated with greater freedom, as well as with fuller knowledge, and deeper anxiety; and I am astonished at the ease with which already men and women conscious of right intention can together discuss such questions and co-operate for reform. In teaching Human Physiology to the young of both sexes I have for many, many years regretted that the by far most important branch of the whole subject has been perforce ignored. I can never forget what Professor Goodsir long ago said to me, "What is the use of teaching the young their bodily structure, while you leave them in ignorance of what causes the greatest part of human misery and vice?" I could but answer that a beginning must be made, and that probably the time would come when parents at least, if not teachers, would regard it as their duty to enlighten their sons and daughters in this matter before the age of puberty and of temptation had arrived. That time seems coming faster than I then or till very recently dared to hope.