直隶总督曾国藩奉旨办理天津教案期间，为曲求和局，奏请将平日颇得民心，津案中并无大过的天津知府张光藻、知县刘杰交部治罪。对于这一情轻法重之举，曾国藩事后十分愧疚。为挽回己疚他对外力争府县免于拟抵，对内力争府县从轻发落。然而张、刘二人最终仍被朝廷从重发戍黑龙江，曾国藩为此而忧伤终生。究其原因，是因为此举违背了他一贯倡导的“诚”和一向自诩的“忠信”的行事为人准则；表现出的是不诚、不忠、不信，犯下欺君、欺友之罪过，因而为之愧疚忧伤无已。而这，正使我们窥见其作为封建王朝孝子忠臣之本质 Zhili Governor Zeng Guofan served as the Tianjin lesson plans for the song Qiu Heju, playing please quite popular on weekdays, Tianjin case is not much of the prefect Zhang Guangzao, magistrate Liu Jie Department of Punishment. Tseng Kuo-fan was very guilty of this situation after a very lenient act. In order to restore his guilt, he prefers to force the prefectures to excuse themselves from any plans to arrive at them, and to force the prefectures and counties to make light changes. However, Zhang and Liu were eventually reshuffled by the court to defend Heilongjiang, Zeng Guofan sorrow for this purpose. The reason for this is that it violates the principle of “sincerity” and self-serving “faithfulness” consistently advocated by him. It shows that they are not honest, unfaithful, unbelieving, and have committed crimes of bullying and cheating , So the guilt sadness without. And this, is to make us glimpse of the essence of loyalty as a feudal dynasty filial son