From
曹植《
白马篇》 (Cao Zhi, Three Kingdoms-era Wei):
捐躯赴国难,
视死忽如归 (Sacrifice your body and rush to the nation's peril; face death as lightly as a return home). The poem honors young cavalrymen from Youzhou; the final couplet became the single most-quoted classical line for patriotic sacrifice, inscribed on war memorials across China.