The first batch of training courses for the National Prosecutor's College in the spring semester of 2024 will start on April 8th. Ying Yong, Secretary of the Party Group and Chief Prosecutor of the Supreme People's Procuratorate, emphasized during his lectures for over 600 students in five classes trained during the same period that he is good at accurately grasping substantive legal relationships from complex legal facts, deeply understanding the spirit of the rule of law from specific legal provisions, and achieving fairness and justice through the organic unity of legal principles. This is an important manifestation of "handling every case with high quality and efficiency.". Ying Yong pointed out that the "three virtues" were proposed by the Supreme Procuratorate Party Group in response to the practical problems of case handling and mechanical justice. The focus is different, but they are interrelated and cannot be neglected. Being adept at accurately grasping substantive legal relationships from complex legal facts is the foundation, with a focus on how to grasp the main contradictions in the case, requiring a comprehensive and accurate grasp of "based on facts"; Being adept at deeply understanding the spirit of the rule of law from specific legal provisions is crucial, with a focus on how to correctly apply the law and requiring a comprehensive and accurate understanding of "taking the law as the criterion"; The goal is to achieve fairness and justice through the organic unity of legal principles and circumstances, with a focus on how to ensure the best results in case handling. It requires comprehensive and accurate coordination based on facts and laws, and strives to seek the "maximum common divisor" of fairness and justice within the legal framework. Ying Yong emphasizes that being good at accurately grasping substantive legal relationships from complex legal facts requires looking at the essence through phenomena. The nature of legal facts, case facts, objective facts, and substantive legal relationships integrated into them should be consistent, and the evidence that connects these aspects is evidence. Facts and evidence are the foundation of fair justice. We need to strengthen evidence review, accurately determine legal facts, reproduce or approach objective facts to the greatest extent possible, and achieve "clear case facts, authentic and sufficient evidence.". Evidence review should emphasize the principle of firsthand experience, step out of the case file, step out of the office, step out of the procuratorial organs, and ensure accuracy and effectiveness through firsthand experience. The substantive legal relationship is a legal relationship that plays a leading and dominant role among the numerous legal relationships involved in a case, and has a decisive impact on the qualitative handling of the case. It is often contained in numerous legal facts and relationships. To clarify the primary and secondary contradictions, grasp the main contradictions and their main aspects in the case, solve the most critical legal issues, identify substantive legal relationships, and ensure accurate application of the law. Accurately grasping the essence of legal relationships is the process of unraveling details and analyzing doubts