And closely connected with the care of one's mental and bodily health is sexual morality, upon which again Deuteronomy and Leviticus are most explicit, leaving very little to the imagination. I am all for imitating the wholesome frankness of the ancient book. Where there are no dark corners there is very little fermentation, there is very little foulness or infection. But in nearly every detail and in method and manner, the Bible of our Civilization needs to be fuller and different from its prototype upon these matters. The real Bible dealt with an oriental population living under much cruder conditions than our own, engaged mainly in agriculture, and with a far less various dietary than ours. They had fermented but not distilled liquors; they had no preserved nor refrigerated foods; they married at adolescence; many grave diseases that prevail to-day were unknown to them, and their sanitary problems were entirely different. Generally our New Leviticus will have to be much fuller. It must deal with exercise--which came naturally to those Hebrew shepherds. It must deal with the preservation of energy under conditions of enervation of which the prophets knew nothing. On the other hand our New Leviticus can afford to give much less attention to leprosy--which almost dominates the health instructions of the ancient law-giver. I do not know anything very much about the movements in America that aim at the improvement of the public health and at the removal of public ignorance upon vital things. In Britain we have a number of powerful organizations active in disseminating knowledge to counteract the spread of this or that infectious or contagious disease. The War has made us in Europe much more outspoken and fearless in dealing with lurking hideous evils. We believe much more than we did in the curative value of light and knowledge. And we have a very considerable literature of books on--what shall I call it? on Sex Wisdom, which aim to prevent some of that great volume of misery, deprivation and nervous disease due to the prevailing ignorance and secrecy in these matters. For in these matters great multitudes of modern people still live in an ignorance that would have been inconceivable to an ancient Hebrew. In England now the books of such a writer as Dr. Marie Stopes are enormously read, and--though they are by no means perfect works--do much to mitigate the hidden disappointments, discontents, stresses and cruelties of married life. Now I believe that it would be possible to compile a modern Leviticus and Deuteronomy to tell our whole modern community decently and plainly--just as plainly as the old Hebrew Bible instructed its Hebrew population--what was to be known and what had to be done, and what had not to be done in these intimate matters.