Ye Lin. In the spirit of Roman law, a slogan is put forward: "Through Roman law, Roman law can be surpassed". In Ye Lin's masterpiece Spirit of Roman Law, a slogan was put forward: "Through Roman law, we can surpass Roman law". Therefore, it is Ye Lin's to surpass Roman law through Roman law. The spirit of Roman law-private law standard, natural law thought, freedom of contract and ownership concept, etc.