This preface will not begin with an apology for the publication of another book on eternity. For no apology is needed. Anything that will lead men to think of their eternal destiny should be accorded a welcome. I was told, only a short time ago, "there is too much eternity, eternity, about this book." But how can this be true when we are all rushing on to eternity, and always liable to be seduced by the devil into the eternity of the damned? Failure to reflect on eternity has at all times in mans history been a fundamental cause of sin. There are always many, alas too many, who, if they do not actually deny an eternal life, yet live as if they had no belief in it. In all thy works remember thy last end, and thou shalt never sin (Ecclus. vii. 40). The consideration of eternity is as necessary in one age as in another. The present day is no exception. "With desolation is all the land made desolate; because there is none that considereth in the heart." (Jer. xii. 11.) God has prepared for the good an eternal reward, and for the wicked an eternal punishment. "Come, ye blessed of my Father, possess you the kingdom prepared for you from the foundation of the world."