Autores:
  • It is a very inconvenient habit of kittens (Alice had once made the remark) that, whatever you say to them, they always purr: "If they would only purr for 'yes,' and mew for 'no,; or any rule of that sort," she had said, "so that one could keep up a conversation! But how can you talk with a person if they always say the same thing?

    "Through the Looking-Glass". Book by Lewis Carroll, Chapter 12: Which Dreamed it?, 1871.