Riddle XVI [The Bookworm] by Caelius Firmanius Symphosius

I thrive on letters yet no letters know,
I live in books, the made more studious so,
Devour the Muses, but no wiser grow.

From: http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Symphosius/16*.html

Date: ?5^th century (original in Latin); 1912 (translation in English)

By: Caelius Firmanius Symphosius (?5^th century)

Translated by: Elizabeth Hickman du Bois Peck (1870-19??)