Dogmas change and our knowledge is deceptive; but Nature never errs, her procedure is sure, and she never conceals it. Everything is entirely in Nature, and Nature is entire in everything. She has her centre in every brute. It has surely found its way into existence, and it will surely find its way out of it. In the meantime it lives, fearless and without care, in the presence of annihilation, supported by the consciousness that it is Nature herself, and imperishable as she is. Man alone carries about with him, in abstract conceptions, the certainty of his death; yet this can only trouble him very rarely, when for a single moment some occasion calls it up to his imagination. Against the mighty voice of Nature reflection can do little. In man, as in the brute which does not think, the certainty that springs from his inmost consciousness that he himself is Nature, the world, predominates as a lasting frame of mind; and on account of this no man is observably disturbed by the thought of certain and never-distant death, but lives as if he would live for ever. Indeed this is carried so far that we may say that no one has really a lively conviction of the certainty of his death, otherwise there would be no great difference between his frame of mind and that of a condemned criminal. Every one recognises that certainty in the abstract and theoretically, but lays it aside like other theoretical truths which are not applicable to practice, without really receiving it into his living consciousness. Whoever carefully considers this peculiarity of human character will see that the psychological explanations of it, from habit and acquiescence in the inevitable, are by no means sufficient, and that its true explanation lies in the deeper ground we have given. The same fact explains the circumstance that at all times and among all peoples dogmas of some kind or other relating to the continued existence of the individual after death arise, and are believed in, although the evidence in support of them must always be very insufficient, and the evidence against them forcible and varied. But, in truth, this really requires no proof, but is recognised by the healthy understanding as a fact, and confirmed by the confidence that Nature never lies any more than she errs, but openly exhibits and naïvely expresses her action and her nature, while only we ourselves obscure it by our folly, in order to establish what is agreeable to our limited point of view.