《晋书·志·第十九章》
太阳快到正午时，老鼠进洞很快又出来，出来又进去，往返多次，说的还像先前一样。
日适欲中，鼠入须臾复出，出复入，转更数，语如前。
When the sun was almost noon, the rat went into the hole and came out quickly again, went out and went in again, going back and forth several times, speaking as before.