Civilization is not exclusively a human thing. It is a joint product — ^the result of the combined labors and sacrifices of many races of mammals and… - J. Howard Moore

To take the life of an ox for his muscles, or to kill a sheep for his skin is murder, and those who do these things or cause them to be done are murderers just as actually as highwaymen are who blow off the heads of hapless wayfarers for their guineas. If these things seem untrue it is not because they are untrue, but because those to whom they seem so are unable to judge conduct from the quadrupedal point of view.

Inventions are a blessing. They tame the wild tendencies of the inanimate and train them to do human bidding. They save human bodies hard and laborious exertions by becoming their obsequious aids. But they are not invariable and universal blessings. The sad and peculiar conditions prevailing in human industry cause inventions to be to many human beings a catastrophe and a dread. To those who are able to own them and have lands on which to operate them they are blessings. But to the great disinherited class, who have nothing on earth but their hands, inventions are a disadvantage and an evil.

An ox is of a very different nature from a fox, and men (some of them) are very unlike serpents, because the classes of impulses in the consciousnesses of these animals are for the most part very different in one animal from another. Serpents, oxen, foxes, and men, however, are all similar in their eagerness to reproduce themselves, and in their emphatic reluctance to die.