Strictly speaking, no activity and no industry is possible without a certain amount of violence, no matter how little. Even the very process of living is impossible without a certain amount of violence. What we have to do is to minimize it to the greatest extent possible.
war with poison and chemicals was not so rare in the ancient world ... An astounding panoply of toxic substances, venomous creatures, poison plants, animals and insects, deleterious environments, virulent pathogens, infectious agents, noxious gases, and combustible chemicals were marshalled to defeat foes - and panoply is an apt term here, because it is the ancient Greek word for 'all weapons.
What I think about vivisection is that if people admit that they have the right to take or endanger the life of living beings for the benefit of many, there will be no limit to their cruelty.
The fact that man knows right from wrong proves his intellectual superiority to the other creatures; but the fact that he can do wrong proves his moral inferiority to any creatures that cannot.
I cannot see the short, white curls
Upon the forehead of an Ox,
But what I see them dripping with
That poor thing's blood, and hear the ax;
When I see calves and lambs, I see
Them led to death; I see no bird
Or rabbit cross the open field
But what a sudden shot is heard;
A shout that tells me men aim true,
For death or wound, doth chill me through.
To the size of the state there is a limit, as there is to plants, animals and implements, for none of these retain their facility when they are too large.
In the relations of man with the animals, with the flowers, with all the objects of creation, there is a whole great ethic, scarcely perceived as yet, which will at length break through into the light, and which will be the corollary and the complement to human ethics.