Strong or weak as may be its influence on us as individuals, it is the greatest thing with which we have to do, from the cradle to the grave. And this holds good whether we give ourselves up to it or reject it. It is the one great acceptance, or “_il gran rifiuto_.” Nothing equally great can come in our way again. In an estimate of the consequences which would follow a general rejection of religion, we are bound to take into view the two classes of men—those who are devout and those who are not so—who would, of course, be diversely affected by such a revolution of opinion. As regards the first, every one will concede that the loss of so important a factor in their lives would alter those lives radically. As regards the second, after noting the orderly and estimable conduct of many of them, the observer might, _per contra_, not unfairly surmise that they would continue to act just as they do at present were religion universally exploded. But ere such a conclusion could be legitimately drawn from the meritorious lives of non-religious men in the present order of society, we should be allowed (it is a familiar remark) to see the behavior of a whole nation of Atheists. Our contemporaries are no more fair samples of the outcome of Atheism than a little party of English youths who had lived for a few years in Central Africa would be samples of Negroes. It would take several thousand years to make a full-blooded Atheist out of the scion of forty generations of Christians. Our whole mental constitutions have been built up on food of religious ideas. A man on a mountain top, might as well resolve not to breathe the ozone in the air, as to live in the intellectual atmosphere of England and inhale no Christianity. As, then, it is impossible to forecast what would be the consequences of universal Atheism hereafter by observing the conduct of individual Atheists to-day, all that can be done is to study bit by bit the changes which must take place should this planet ever become, as is threatened, a _Faithless World_. In pursuing this line of inquiry it will be well to remember that every ill result of loss of faith and hope which we may now observe will be _cumulative_ as a larger and yet larger number of persons, and at last the whole community, reject religion together. Atheists have been hitherto like children playing at the mouth of a cavern of unknown depth. They have run in and out, and explored it a little way, but always within sight of the daylight outside, where have stood their parents and friends calling on them to return. Not till the way back to the sunshine has been lost will the darkness of that cave be fully revealed.