《资治通鉴·汉纪·汉纪四十九》
奏章呈上去后，灵帝打算停止兴建，询问侍中任芝、乐松的意见。他们二人回答说： 过去，周文王的苑囿，方圆有一百里，人们尚且认为太小；齐宣王的苑囿，方圆只有五里，人们却认为太大。
书奏，帝欲止，以问侍中任芝、乐松；对曰： 昔文王之囿百里，人以为小；齐宣五里，人以为大。
After the memorial was submitted, Emperor Ling considered stopping the construction, and he asked the attendants Ren Zhi and Le Song for their advice. They both replied: In the past, the imperial garden of King Wen of Zhou was one hundred li square, and people still thought it was too small; the imperial garden of King Xuan of Qi was only five li square, and people thought it was too big.