"Nay," responded the Khan, "to crush your enemies, to see them fall at your feet—to take their horses and goods and hear the lamentation of their women. That is best."
Harold Lamb - Genghis Khan, the emperor of all men (1925)
Lifted for the Conan movie by Milius and nothing to do with REH, although it fits the character in the end. He meets with someone named "Genjis" (Kobe) in the comics, however.
https://archive.org/details/genghiskhanemper0000lamb_f6b1/page/n9/mode/2up




