Why have translators found Horace’s Odes difficult to translate?

Translators have long found Horace’s Odes difficult to translate due to their "many-facetted intricacy" and "cryptic, riddling sonority". Horace crafted these poems with a dense, compact, and resplendent texture that reflects his ambition to be a solemn bard, often weaving together abundant Greek and Roman mythology.1

The challenge is further compounded by several factors:

• Literary Allusion: Horace maintained a continuous, sophisticated relationship with the literary tradition, frequently employing "mottoes" or allusions to earlier Greek writers that are often difficult to identify or replicate.1
• Technical Perfectionism: Horace adapted Greek metres into Latin with a level of studied perfectionism, elegance, and dignity that often resulted in a loss of spontaneity and a sense of detachment.23
• Complex Tone: His work balances diverse elements, including irony, melancholy, gentle humour, and an urbane Epicureanism, which are difficult to capture simultaneously in another language.13

Despite these "not wholly conquerable problems," the excellence of the Odes has inspired countless translations throughout history.1