There exists in our hearts a moral force which no philosophy has been able to explain, which no science has been able to analyze, which is called _conscience_. Conscience is a sacred light burning within us, which nothing can obstruct, obscure, or extinguish, and which has the power of giving us sure and certain enlightenment on every occasion in our lives. Conscience is infallible. Notwithstanding everything, in spite of our real or apparent interest, at all times, and in all places, speaking to the great and the small alike, to the powerful and to the weak, it always teaches to discern good from evil, the honest from the dishonest way. In our belief, conscience is the impression transmitted to us by a beloved being, snatched from us by death. It is a relative, a friend, who has left the earth, and who deigns to reveal himself to us, that he may guide us in our actions, trace out the path of safety for us, and labour for our good. Cowardly, perverse, base, and lying men exist, of whom we say that _they have no conscience_. They do not know how to distinguish good from evil; they are entirely wanting in moral sense. It is because they have never loved any one, and their souls, base and vile, are not worthy to be visited by any of those superior beings, who only manifest themselves to men who resemble them, or who have loved them. A man _without a conscience_ is, then, one who is rendered unworthy, by the vicious essence of his soul, of the lofty counsels and the protection of those who are no more. Our readers will have perceived that this idea of a supreme and invisible protector of man, who guides his heart, and enlightens his reason, has already been formulated by the Christian religion, which has derived it from Holy Scripture. It is the _Guardian Angel_, a mysterious and poetic type, a seraphic creature, whom God has charged to watch over the Christian, to guard him against snares, and constantly to direct him to the ways of sanctity and virtue. We observe this argument without having sought it. In short, we register our ideas as they deduce themselves logically from each other, without any bias. And when we find ourselves led into agreement with a dogma of the Christian religion, we note that concord with pleasure. We would ask those persons who have read these pages to question themselves, to summon up their recollections, to reflect upon what has passed around them, and we are convinced that they will discover many facts in harmony with what we advance. The moral phenomenon of the impressions made by the dead on the mind of the living who have loved them, and who keep up the cultus of their memory, is one of those truths which every one holds by intuition, and whose entire verity he acknowledges when he finds it curtly formulated and put forward. We will not give our readers second-hand information by invoking facts of this kind which they may know; we can only recall a few which came under our observation, briefly, as follows: