《宋书·列传·卷七十三》
况且是具有美好的理想，拥有安仁富足的快乐，明白天下万物，如神明般的安详，纵然十天吃九餐，也不能叫他觉得饥饿，冬月以席子为铺垫，也不会觉得寒冷，难道不是如此吗？
非粒实息耗，意有盈虚尔。况心得复劣，身获仁富，明白入素，气志如神，虽十旬九饭，不能令饥，业席三属，不能为寒。岂不信然！
Moreover, when a person has good ideals, has the joy of peace and wealth, understands everything in the world, and is as peaceful as a god, even if he eats only nine meals in ten days, he will not feel hungry. In the winter months, if he uses a mat as a quilt, he will not feel cold. Is this not the case?