""That the dead are seen no more," said Imlac, "I will not undertake to maintain against the concurrent and unvaried testimony of all ages and of all nations. There is no people, rude or learned, among whom apparitions of the dead are not related and believed. This opinion, which perhaps prevails as far as human nature is diffused, could become universal only by its truth: those that never heard of one another would not have agreed in a tale which nothing but experience can make credible. That it is doubted by single cavillers can very little weaken the general evidence, and some who deny it with their tongues confess it by their fears."