论义务（影印本）

OnDutieswasCicero`slastphilosophicalwork.InithemadeuseofGreekthoughttoformulatethepoliticalandethicalvaluesvaluesofRomanRepublicansocietyashesawthem，revealingincidentallyagreatdealaboutactualpractice.WritingatatimeofpoliticalcrisisaftertheassassinationofJuliusCaesarin44BC，whenitwasnotclearhowmuchoftheoldRepulicanorderwouldsurvive，Ciceroherehandedontheinsightsofandelderstatesman，adeptatpoliticaltheoryandpractice，tohisson，andthroughhimtotheyoungergenerationingenerationingeneral.TheworkhasoftenbeentreatedmerelyasakeytothelostGreekworksthatCiceroused.Thisvolume，containinganewannotatedtranslationandanIntroduction，aswellasinformationonchronology，vocabulary，bibliographyandpersonsmentionedinthetext，aimstomakeDcOfficiis，whichhadsuchanimportandinfluenceonlatermasterpiecesofWesternpoliticalthought，moreintelligiblebyexplainingitsrelationtoitsowntimeandplace.