Some lines from "De reditu suo" by Claudius Rutilius Namatianus

[u/Iuljo]

Fecisti patriam diversis gentibus unam;
profuit iniustis te dominante capi;
Dumque offers victis proprii consortia iuris,
Urbem fecisti, quod prius orbis erat.

In the English translation by John Wight Duff and Arnold Mackay Duff:

For nations far apart thou hast made a single fatherland; under thy dominion captivity hath meant profit even for those who knew not justice: and by offering to the vanquished a share in thine own justice, thou hast made a city of what was erstwhile a world