《淮南子·诠言训》
神龟寿长三千年而蜉蝣不过活三天，以短命蜉蝣去替神龟养生条件担忧，这一定会引起人们的嘲笑。
龟三千岁，浮游不过三日，以浮游而为龟忧养生之具，人必笑之矣。
A divine turtle lives for three thousand years while a mayfly lives for only three days. If the short-lived mayfly worries about the conditions for cultivating life for the divine turtle, this will surely arouse people's laughter.