In the Iliad, Homer compares the Trojans to stridulating grasshoppers, which the classicist Gordon Lindsay Campbell believes to imply that they make a lot of noise but are weaker and less determined than they think. In the Aeneid, Book 4, Virgil compares the world of Dido, queen of Carthage, with a colony of ants. Campbell argues that Dido's people are hardworking, strong, unfailingly loyal, organised, and self-regulating: just the sort of world that the hero Aeneas would like to create.