"Nature is no sentimentalist,—does not cosset or pamper us. We must see that the world is rough and surly, and will not mind drowning a man or a woman; but swallows your ship like a grain of dust. The cold, inconsiderate of persons, tingles your blood, benumbs your feet, freezes a man like an apple. The diseases, the elements, fortune, gravity, lightning, respect no persons. The way of Providence is a little rude. The habit of snake and spider, the snap of the tiger and other leapers and bloody jumpers, the crackle of the bones of his prey in the coil of the anaconda,—these are in the system, and our habits are like theirs. You have just dined, and, however scrupulously the slaughter-house is concealed in the graceful distance of miles, there is complicity,—expensive races,—race living at the expense of race. ... The cholera, the small-pox, have proved as mortal to some tribes, as a frost to the crickets, which, having filled the summer with noise, are silenced by a fall of the temperature of one night. Without uncovering what does not concern us, or counting how many species of parasites hang on a bombyx; or groping after intestinal parasites, or infusory biters, or the obscurities of alternate generation;—the forms of the shark, the labrus, the jaw of the sea-wolf paved with crushing teeth, the weapons of the grampus, and other warriors hidden in the sea,—are hints of ferocity in the interiors of nature. Let us not deny it up and down. Providence has a wild, rough, incalculable road to its end, and it is of no use to try to whitewash its huge, mixed instrumentalities, or to dress up that terrific benefactor in a clean shirt and white neckcloth of a student in divinity."
January 1, 1970
https://en.wikiquote.org/wiki/Wild_animal_suffering