Thomas Babington Macaulay Quote

"Oh, Tiber! Father Tiber!
To whom the Romans pray,
A Roman's life, a Roman's arms,
Take thou in charge this day!"
So he spake, and speaking sheathed
The good sword by his side,
And with his harness on his back,
Plunged headlong in the tide.

Horatius, st. 59 - Lays of Ancient Rome (1842)