《宋史·列传·卷二百零三》
刘恕做学问，从历数、地理、官职、族姓到前代公府案牍，都详研细考。
恕为学，自历数、地里、官职、族姓至前代公府案牍，皆取以审证。
Liu Shu's scholarship covered history, geography, official ranks and family names, as well as the archives of the previous imperial courts.