《管子·问》
其卖出、购进、死亡、繁殖的总数有多少？至于城郭建筑的厚薄，护城河的浅深以及门楼的高低，宜修而未修的，朝廷必须向守备的军队进行稽查。
其就山薮林泽食荐者几何，出入死生之会几何。若夫城郭之厚薄，沟壑之浅深，门闾之尊卑，宜修而不修者，上必几之。
How many have been sold, bought, died, and reproduced? As for the thickness and thinness of city walls, the depth and shallowness of moats, and the height and lowness of gate towers, the court should inspect the garrison troops for any needed repairs not yet made.