《淮南子·修务训》
没有了规矩，即使是奚仲也无法凭他的技艺来确定方圆；没有了准绳，即使是鲁般也无法凭他的技术来确定曲直。
夫无规矩，虽奚仲不能以定方圆；无准绳，虽鲁般不能以定曲直。
Without rules, even Xi Zhong cannot use his skills to make certain of squares and circles; without a measuring line, even Luban cannot use his skills to make certain of straight and crooked. 