heard, which proclaim an irreconcilability between faith and {2} knowledge, between the religious and the scientific views of the world; which declare that peace between the two can only be had at the price either of permitting the religious impulses of the heart to be stifled in favor of science, of satisfying the religious need of the mind with a nourishment which in the light of science proves to be an illusion, or, as sceptics in theory and eclectics in practice, of renouncing with resignation a logical connection and foundation to their former view of the world. The most striking proof of the extent to which these voices are heard, is the fact that it has been possible for a one-sided pessimism to become the fashionable system of philosophy in a Christian nation. The most effective means for opposing such discordant voices, and for making amends for the disagreements which they have occasioned, undoubtedly consists in the actual proof of the contrary of their theories, in the clear presentation of a standpoint from which not only the most unrestricted freedom of investigation and the most unreserved acknowledgment of its results shall be in perfect harmony with the undiminished care of our entire religious possession, but in which this peace is preserved and forever established by the very fact that one function of the mind directly requires the other, one possession directly guarantees the other. This is the standpoint of the author, and from it he has endeavored to treat all the questions which are to be taken into consideration. Should he, by his exposition of this standpoint, succeed in helping even a few readers in reaching the conviction of the actual harmony between the scientific, religious, and ethical acquisitions of mankind, or in confirming them anew in such conviction, he would find himself amply rewarded for this first extended venture before the public. R. S. {3} AUTHOR'S PREFACE TO AMERICAN EDITION. Six years have elapsed since I wrote the book which is now going forth in English dress. The great leader of the theories in question has passed away; the waves of thought he set in motion are assuming smoother shape; and I can only add to what I have already written, that not only have I had no occasion to retract any of the statements or views laid down in the book, but I perceive the religious as well as the scientific world growing more and more into accord with the views I have maintained, and which were at first so vehemently opposed. I owe so much to the literary men of the English tongue on both sides of the Atlantic, that I shall be glad if, through the devoted labors of the translator, I am enabled to pay them a tribute of gratitude by aiding them in clearing the way for thought in these much disputed fields, or in reconciling in their minds the conflict between faith and science. R. S. SCHOeNTHAL, WUeRTEMBERG, _September_, 1882. * * * * * {5} INTRODUCTION TO AMERICAN EDITION,