Words of filial piety to the generals and soldiers of King Quang Trung in Thanh Hoa also expressed his strong determination to defeat foreign invaders to protect national independence

“Fight until their hair grows long
Fight until their teeth turn black
Fight until they never turn back
Fight until they never return with their armor
Fight so that history knows that the Southern nation has a heroic owner”

Materials: Vietnam History Book Volume 01 –Hanoi Social Sciences Publishing House 1971 – p 353