cruelty to animals is contrary to man's duty to himself, because it deadens in him the feeling of sympathy for their sufferings, and thus a natural tendency that is very useful to morality in relation to other human beings is weakened.
I have been studying the traits and dispositions of the "lower animals" (so called) and contrasting them with the traits and dispositions of man. I find the result humiliating to me.
What strength belongs to every plant and animal in nature. The tree or the brook has no duplicity, no pretentiousness, no show. It is, with all its might and main, what it is, and makes one and the same impression and effect at all times. All the thoughts of a turtle are turtle's, and of a rabbit, rabbit's. But a man is broken and dissipated by the giddiness of his will; he does not throw himself into his judgments; his genius leads him one way but 't is likely his trade or politics in quite another.
Most persons think that a state in order to be happy ought to be large; but even if they are right, they have no idea of what is a large and what a small state.... To the size of states there is a limit, as there is to other things, plants, animals, implements; for none of these retain their natural power when they are too large or too small, but they either wholly lose their nature, or are spoiled.
About sacrifice and the offering of sacrifices, sacrificial animals think quite differently from those who look on: but they have never been allowed to have their say.
GNU, n. An animal of South Africa, which in its domesticated state resembles a horse, a buffalo and a stag. In its wild condition it is something like a thunderbolt, an earthquake and a cyclone.
For the real difference between humans and other animals is that humans alone have perception of good and evil, just and unjust, etc. It is the sharing of a common view in these matters that makes a household and a state.
Quadruped lions are said to be savage, only when they are hungry; biped lions are rarely sulky longer than when their appetite for distinction remains unappeased.
Humans call animals 'dumb'... after they robbed their entire own precious world. They are intelligent beings in their own right, and thoroughly self-sufficient... if not molested by humans. Yet, after millennia of slavery by selfish/callous humans they're made to look dumb! The 'superior species' in their situations would, too, appear 'dumb'.