In defense of the Christians, Duyệt wrote to Ming Mạng, "We still have between our teeth the rice which the missionaries gave us when we were starving."
Dalam membela umat Kristen, Duyệt menulis surat kepada Ming Mạng, "Kita masih memiliki di antara gigi kita nasi yang diberikan para misionaris kepada kita ketika kita mengalami kelaparan."