In Laurence Sterne’s 1759 novel Tristram Shandy, the hero describes how his good-natured uncle Toby is plagued by a particularly large and annoying fly which “buzzed about his nose, and tormented him cruelly all dinner time”. Eventually he manages to catch the offending insect, but instead of killing it, he releases it out of the window.
“Why should I hurt thee?” he says. “This world surely is wide enough to hold both thee and me.” The novel’s hero is a child at the time, but this “lesson of universal good-will” leaves an abiding impression on him, setting, as he put it “my whole frame into one vibration of most pleasurable sensation”.