Brodie: (President of the Royal Society, 1858.) The mind of animals is essentially the same as that of man. Every one familiar with the dog will admit that that creature knows right from wrong, and is conscious when he has committed a fault.
Du Bois-Reymond: With awe and wonder must the student of nature regard that microscopic molecule of nervous substance which is the seat of the laborious, constructive, orderly, loyal, dauntless soul of the ant. It has developed itself to its present state through a countless series of generations.
John Fiske: But the propriety of identifying soul and breath, which really quits the body at its decease, has furnished the chief name for the soul, not only to the Hebrew, the Sanskrit, and the classic tongues; not only to German and English, where geist, and ghost, according to Max Muller, have the meaning of "breath," and are akin to such words as gas, gust, and geyser; but also to numerous barbaric languages. ("Myths and Myth-Makers," p. 225.) The belief in wraiths has survived into modern times, and now and then appears in that remnant of primeval philosophy known as "Spiritualism," as for example, in the case of the lady who "thought she saw her own father look in at the church window at the moment he was dying at his own house." (Ib., p. 229.) The Kamtchadales expressly declare that all animals, even flies and bugs, will live after death,--a belief, which, in our day, has been indorsed on philosophical grounds by an eminent living naturalist. (Ib., 230.) [Mr. Fiske refers to Agassiz.]
M. Figuier: Human souls are for the most part the surviving souls of deceased animals; in general, the souls of precocious children like Mozart come from nightingales, while the souls of great architects have passed into them from beavers, and etc., etc. ("The To-morrow of Death," p. 247.)
W. Lauder Lindsay: By no kind of scientific evidence can it be proved that soul exists, whether in man or other animals.... Nor should it be forgotten that, according to many writers, the word or term "soul" is regarded as synonymous with "mind," in which case there can be no question as to its possession by the higher animals. While the term "soul" has also been applied--in figurative senses no doubt--even to plants. ("Mind in the Lower Animals," v. 1, p. 101.) It obviously lies with those who assert dogmatically that all men have immortal souls, while no animals possess them, to reconcile with such a conviction the provable fact that many animals are superior to many men, not only in general intelligence, but also as regards moral sense and religious feeling. (Ib.) Ideas of justice or right, feelings of decency or shame, that combination or essence of moral qualities known as conscience, are as certainly present in some animals as they appear to be absent in countless numbers of men. (Ib., p. 103.)