Quintus Horatius Flaccus, or HORACE (65 BC-8BC), was a Roman lyric poet during the reign of the Emperor Augustus.
Amongst his best known works are the Sermones (Satires) and the Ars Poetica.
Horace coined the phrase, 'Dulce et decorum est pro patria mori' ('It is sweet and fitting to die for one's country') which is used to such striking effect in Wilfred Owen's poem whose title is the first part of the quotation.
Extract from 'Dulce et Decorum Est' by Wilfred Owen:
My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie; Dulce et Decorum est
Pro patria mori.