Since the last poem was a wholesome Byzantine Greek hymn, I figured I'd balance it out with a bit of Greco-Roman zing from Lucilius who, depending on how smutty your reading is, is either being uncharitable to people of small stature, or making one of the first recorded penis-jokes in history. The poem (found as 11.103 in the Greek Anthology) is from the 1st century AD. Though written in Greek its author was probably Roman.
Atomic Theory: On The Smallness of Things
Translated by A.Z. Foreman
Thus spake Epicurus: "all things in the cosmos are made of atoms"
Thinking the atom the smallest thing of all.
Had he known Diophantus, he'd have said "made of Diophantus",
(The subatomic smallest of the small),
Or just "most things are made of atoms", and grant us
That "the atom itself is made of Diophantus."
ἐξ ἀτόμων Ἐπίκουρος ὅλον τὸν κόσμον ἔγραψεν
εἶναι, τοῦτο δοκῶν, Ἄλκιμε, λεπτότατον.
εἰ δὲ τότ᾽ ἦν Διόφαντος, ἔγραψεν ἂν ἐκ Διοφάντου,
τοῦ καὶ τῶν ἀτόμων πουλύ τι λεπτοτέρου,
ἢ τὰ μὲν ἄλλ᾽ ἔγραψε συνεστάναι ἐξ ἀτόμων ἄν,
ἐκ τούτου δ᾽ αὐτάς, Ἄλκιμε, τὰς ἀτόμους.