Julius Caesar

from this list what literary device is this sentence (the underlined portions)

Simile
Metaphor
Idiom
Hyperbole
Analogy
Personification
Onomatopeia
Allusion
Pun

Why, man, he doth bestride the narrow world like a Colossus, and we petty men walk under his huge legs and peep about to find ourselves dishonorable graves (don't use similes)