In sober truth, to those who have made a study of the phenomena of life as they are exhibited by the higher forms of the animal world, the optimistic dogma that this is the best of all possible worlds will seem little better than a libel upon possibility. It is really only another instance to be added to the many extant, of the audacity of a priori speculators who, having created God in their own image, find no difficulty in assuming that the Almighty must have been actuated by the same motives as themselves. They are quite sure that, had any other course been practicable, he would no more have made infinite suffering a necessary ingredient of his handiwork than a respectable philosopher would have done the like...