《论衡·卷十七·是应篇》
太平之气能够让厨房里自己长出萐莆，为何不让饭自己在甑子中蒸熟，火在灶里自己燃烧起来呢？
能使厨自生肉，何不使饭自蒸於甑，火自燃於灶乎？
The peaceful atmosphere can make Rufu grow in the kitchen by itself, so why not let the rice steam itself in the steamer and the fire burn in the stove by itself?