Referring to the Ikeda-Tehranian Buddhist-Muslim Dialogue, Mohammad Selim, the Arab translator of the text, writes:

"It also carries with it the promise of success as there is no sense of superiority among the dialoguing parties."

I'm sure Nichiren Daishonin would have had a similar "no sense of superiority" dialogue with Ghiyas ud din Balban, the brutal Sultan of India [1266 - 1287]