Lecture I

It is certain that these questions, bearing as they do upon the spiritual and physical worlds alike, will, to begin with, be taken less seriously than is their due. For judgments about such matters cannot be formed as judgments are formed about the things of ordinary life. And in order to indicate the many underlying factors which have to be taken into consideration, I should like to make a certain personal reference—although it is meant to be quite objective—before we come to answer the questions: Who was Bacon in his previous life? Who was Darwin in his previous life?