Dulce et decorum est pro patria mori

Dulce et decorum est pro patria mori^[a] is a line from the Odes (III.2.13) by the Roman lyric poet Horace. The line translates: "It is sweet and proper to die for one's country." The Latin word patria (homeland), literally meaning the country of one's fathers (in Latin, patres) or ancestors, is the source of the French word for a country, patrie, and of the English word "patriot" (one who loves their country).

Horace's line was quoted in the title of a poem by Wilfred Owen, "Dulce et Decorum est", published in 1921, describing soldiers' horrific experiences in World War I. Owen's poem, which calls Horace's line "the old Lie", essentially ended the line's straightforward uncritical use.
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