De Officiis is a treatise written by Marcus Tullius Cicero (106 – 43 BCE), Roman statesman and orator, in the form of a letter to his son just after the death of Julius Caesar in 44 BCE. Strongly influenced by stoicism, De Officiis is divided into three books and reflects the author's view on how to live a good life. The first two books are based on the teachings of stoic philosopher Panaetius of Rhodes, with Book I analysing honour and its roots and Book II delving into utility and what is to one's advantage. Book III links honour with usefulness and explores which should prevail.
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