卢埃林认为传统规则理论中纸面规则的不合理想性,体现在它对于判决结果的不充分的预测上。为了获得更大的确定性,他独辟蹊径地采用了行为主义的进路,凸现了法律官员的行为在解决争端的过程中的重要性。他的规则理论在教学领域表现为,对当时处于主导地位的朗德尔案例教学法的反动,在实践上表现为美国统一商法典的独特的起草风格。 Llewellyn believes that the unopposed ideality of the paper rules in the traditional rules theory is reflected in its inadequate prediction of the verdict. In order to gain greater certainty, he adopted a behavioral approach in his own way, highlighting the importance of the behavior of legal officials in the process of dispute settlement. His theory of rules appears in the field of teaching as that the reaction to the then-dominant case of the Langdell case-based approach appears in practice to be a unique drafting style of the Uniform Commercial Code of the United States.