Curiosity killed the cat (but satisfaction brought it back)

Origin

The kernel of this phrase first appeared in 16th-century England, not with curiosity, but with "care"—meaning sorrow or worry. Ben Jonson, in his 1598 play "Every Man in His Humour," noted that "Care will kill a cat," suggesting profound anxiety could prove fatal even to a creature famed for its nine lives. Over the centuries, "care" gradually morphed into "curiosity," as society recognized the dangers of poking one's nose where it didn't belong. By the late 19th century, "Curiosity killed the cat" was firmly established, a sharp warning against meddling. It wasn't until the early 20th century, notably popularized by American playwright Eugene O'Neill in his 1920 play "Diff'rent," that the hopeful coda "but satisfaction brought it back" was added, offering a nuanced perspective: while curiosity carries risks, the ultimate reward of discovery or resolution can indeed make it all worthwhile.