“Cruelty.Not only the willful causing of unnecessary suffering, but the indifference to it. It's much easier to be cruel than one might think. It's often said that nature, "red in tooth and claw," is cruel. I heard this again and again from ranchers, who tried to persuade me that they were protecting their animals from what lay outside the enclosures. Nature is no picnic, true. (Picnics are rarely picnics.)And it's also true that animals on the very best farms often have better lives than they would in the wild. But nature isn't cruel. And neither are the animals in nature that kill and occasionally even torture one another. Cruelty depends on an understanding of cruelty, and the ability to choose against it. Or to choose to ignore it.”

“We generally accept that it's natural for carnivorous wild animals to kill other animals in order to live. But people don't often think (or even know) about the extraordinary and unnatural suffering that humans inflict on the animals that we freely harvest for food, with the help of modern high technology and the animal food sciences.”

“Cruelty depends on an understanding of cruelty, and the ability to choose against it. Or to choose to ignore it.”

“Nature was more merciful than men, providing for those who suffered great pain such blessedness as fainting; but men were cruel and brought their victims out of faints that the pain might start again. (On being tortured/The Tower.)”

“And what of Nature itself, you say – that callous and cruel engine, red in tooth and fang? Well, it is not so much of an engine as you think. As for "red in tooth and fang," whenever I hear the phrase or its intellectual echoes I know that some passer-by has been getting life from books.”

“Indeed, people speak sometimes about the ‘animal’ cruelty of man, but that is terribly unjust and offensive to animals, no animal could ever be so cruel as a man, so artfully, so artistically cruel”