
“The mountains will be in labor, and a ridiculous mouse will be brought forth.”
Parturient montes, nascetur ridiculus mus.
Source: Ars Poetica, or The Epistle to the Pisones (c. 18 BC), Line 139. Horace is hereby poking fun at heroic labours producing meager results; his line is also an allusion to one of Æsop's fables, The Mountain in Labour. The title to Shakespeare's play Much Ado About Nothing expresses a similar sentiment.