And now that I am about to trace, as far as I can, the course of that great revolution of mind, which led me to leave my own home, to which I was bound by so many strong and tender ties, I feel overcome with the difficulty of satisfying myself in my account of it, and have recoiled from doing so, till the near approach of the day, on which these lines must be given to the world, forces me to set about the task. For who can know himself, and the multitude of subtle influences which act upon him? and who can recollect, at the distance of twenty-five years, all that he once knew about his thoughts and his deeds, and that, during a portion of his life, when even at the time his observation, whether of himself or of the external world, was less than before or after, by very reason of the perplexity and dismay which weighed upon him,—when, though it would be most unthankful to seem to imply that he had not all-sufficient light amid his darkness, yet a darkness it emphatically was?