Rhetorica ad Herennium · De Memoria

Rhetorica ad Herennium in Latin: III.28–40, On Memory

Rhetorica ad Herennium is one of the most important surviving Latin texts on rhetoric and one of the easiest to misattribute. Medieval and Renaissance scribes often transmitted it under Cicero’s name, but modern scholars are pretty sure Cicero had nothing to do with it. Librorum Capsula has Book III.28–40, the section on memory, not the whole four-book treatise.

Rhetorica ad Herennium III.28-40 cover

An Ancient Mnemonic Tradition

In an age when most people prefer searching online to memorizing, Rhetorica ad Herennium offers a different course. Build a palace in your mind and populate it with what matters so you never forget the essential.

From Rhetorica ad Herennium III.28-40

Rhetorica ad Herennium III.29

Tap a word — or show the glosses under every word.

artificiōsaartificialimāginibusimages

The artificial memory, then, is made up of places and images.

The artificial memory is built from places and images — the central formula of the classical memory system.

Who wrote it?

Did Cicero write the Rhetorica ad Herennium?

The Oxford Classical Dictionary dates the four-book treatise to 86–82 BCE. The manuscript tradition’s attribution to Cicero is no longer accepted, and proposals such as Cornificius remain disputed. That uncertainty is why Librorum Capsula labels the book’s author as “Scriptor Ignotus” rather than repeating a probably wrong Cicero claim.

Librorum Capsula doesn’t present the whole treatise — the live reader contains Book III.28–40, De Memoria: the discussion of natural and artificial memory, places, images, and techniques for making material memorable.

Why this is a good Latin selection

Rhetorica ad Herennium on memory: places and images.

Unlike a random extract chosen only because it’s short, this section is a coherent piece of intellectual history. The terminology repeats — memoria, locus, imago, artificiosus — so the vocabulary becomes easier as the argument proceeds.

Read next

The art of memory runs through Latin from here to the fifteenth century: see the ars memoriae guide →

Ars memorandi cover
Medieval memory1,101 wordsLC 5.6

Ars memorandi — Magister Hainricus

See how a fifteenth-century mnemonic handbook develops the tradition in later Latin.

Read in Latin →Library entry →

Augustinus de Memoria cover
Late Antique memory5,793 wordsLC 8

Augustinus de Memoria — Sancti Aurelii Augustini

Move from rhetorical technique to Augustine’s exploration of memory and the mind.

Read in Latin →Library entry →

Sources & further reading

  • Oxford Classical Dictionary, Rhetorica ad Herennium — authorship, approximate dating, and work structure
  • Harry Caplan’s introduction (University of Chicago mirror) — discussion of the rejected Ciceronian attribution

Questions

A few things worth knowing.

Did Cicero write Rhetorica ad Herennium?

Modern scholarship does not accept the traditional Ciceronian attribution. The author remains unknown.

How much of the work can I read here?

The current reader contains III.28–40, the De Memoria section, not all four books.

Is this where the “memory palace” comes from?

It is one of the foundational surviving Roman texts for the method of places and images later associated with memory-palace traditions.

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