猫有九命仅有一心鱼有记忆仅有七秒
[māo yŏu jiŭ mìng jĭn yŏu yī xīn yú yŏu jì yì jĭn yŏu qī miăo]
A fact-based creative idiom, literally 'a cat has nine lives yet remains devoted wholeheartedly while a fish's memory lasts only seven seconds.' Contrasts unwavering loyalty and long-lasting remembrance associated with cats versus short-lived memory attributed traditionally to goldfish. It implies different creatures exhibit varying capacities of loyalty based solely on nature.