Looking back over his pages, after nearly a quarter of a century more of investigation and experience, the author is grateful that he finds nothing to retract or expunge. He has but to add such thoughts and illustrations as have occurred to him in the course of his subsequent studies. He hopes that the supplementary chapters now published will be found more suggestive and mature than the preceding ones, while the same in aim and tone. For he still believes, as he did in his earlier time, that there is much of error and superstition, bigotry and cruelty, to be purged out of the prevailing theological creed and sentiment of Christendom. And he still hopes, as he did then, to contribute something of good influence in this direction. The large circulation of the work, the many letters of thanks for it received by the author from laymen and clergymen of different denominations, the numerous avowed and unavowed quotations from it in recent publications, all show that it has not been produced in vain, but has borne fruit in missionary service for reason, liberty, and charity. This ventilating and illumining function of fearless and reverential critical thought will need to be fulfilled much longer in many quarters. The doctrine of a future life has been made so frightful by the preponderance in it of the elements of material torture and sectarian narrowness, that a natural revulsion of generous sentiment joins with the impulse of materialistic science to produce a growing disbelief in any life at all beyond the grave. Nothing else will do so much to renew and extend faith in God and immortality as a noble and beautiful doctrine of God and immortality, freed from disfiguring terror, selfishness, and favoritism. The most popular preacher in England has recently asked his fellow believers, "Can we go to our beds and sleep while China, India, Japan, and other nations are being damned?" The proprietor of a great foundry in Germany, while he talked one day with a workman who was feeding a furnace, accidentally stepped back, and fell headlong into a vat of molten iron. The thought of what happened then horrifies the imagination. Yet it was all over in two or three seconds. Multiply the individual instance by unnumbered millions, stretch the agony to temporal infinity, and we confront the orthodox idea of hell! Protesting human nature hurls off such a belief with indignant disdain, except in those instances where the very form and vibration of its nervous pulp have been perverted by the hardening animus of a dogmatic drill transmitted through generations. To trace the origin of such notions, expose their baselessness, obliterate their sway, and replace them with conceptions of a more rational and benignant order, is a task which still needs to be done, and to be done in many forms, over and over, again and again. Though each repetition tell but slightly, it tells.