"Among brutes as well as men, everything important and delightful as it may be in its nature and effects, is begun, Continued, and ended in difficulty. We view throughout the whole animal creation the painful anxiety of the mother too often rewarded with the loss of the young progeny, and her trouble about rearing them end in disappointment ... the hawk and the owl will always prey on the infant family of the sparrow and the mouse: all nature is one wide waste of devastation; and, though we may diminish the sufferings of animals under our own eyes, yet the wood and the wilderness will be theatres of woe, and the wide waters of the deep tainted with the blood of savage strife, so long as the world remains in its present condition."
January 1, 1970
https://en.wikiquote.org/wiki/Wild_animal_suffering