Quintilian

Marcus Fabius Quintilianus (Latin: [kʷiːntɪliˈaːnʊs]; c. 35 – c. 100 AD) was a Roman educator and rhetorician born in Hispania, widely referred to in medieval schools of rhetoric and in Renaissance writing. In English translation, he is usually referred to as Quintilian ( kwin-TIL-ee-ən), although the alternate spellings of Quintillian and Quinctilian are occasionally seen, the latter in older texts.

Notable works: Institutio Oratoria

Source: Wikipedia — https://en.wikipedia.org/wiki/Quintilian