# Institutio Oratoria 9.1.19

Quintilian, Institutio Oratoria, Book 9, Chapter 1. Latin.

Canonical: https://interlinea.aeterna-institute.org/library/latin/quintilian/institutio-oratoria/9.1.19

ut vero natura prius est concipere animo res quam enuntiare, ita de iis figuris ante est loquendum, quae ad mentem pertinent; quarum quidem utilitas cum magna, tum multiplex, in nullo non orationis opere vel clarissime lucet. nam etsi minime videtur pertinere ad probationem, qua figura quidque dicatur, facit tamen credibilia quae dicimus et in animos iudicum, qua non observatur, irrepit.

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Quintilian, Institutio Oratoria, ed. Harold Edgeworth Butler. Text: the Perseus Digital Library, canonical-latinLit, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://github.com/PerseusDL/canonical-latinLit/blob/master/data/phi1002/phi001/phi1002.phi001.perseus-lat2.xml.