Scholars believe that after learning about the intricacies of the Greek shorthand system, Cicero recognized the need for a comprehensive, standard Latin notation system and delegated the task of creating one to his slave, Tiro, whose highly refined and accurate method became the first standardized and widely adopted system of Latin shorthand. Tironian notes (), also known as Tironian shorthand, consisted of abbreviations with Latin letters, abstract symbols contrived by Tiro, and symbols borrowed from Greek shorthand. Tiro's notes represented prepositions, truncated words, contractions, syllables, and inflections. According to Di Renzo: "Tiro then combined these mixed signs like notes in a score to record not just phrases, but, as Cicero marvels in a letter to Atticus, 'whole sentences.'"