"the christians say their god was jesus christ; the saracens, mohammed; the jews, moses; and the buddha; and i do honor and reverence to all four, that is to him who is the greatest in heaven and more true, and him i pray to me."

who might have said this?

genghis khan, because he was tolerant of the religions of the people he conquered

marco polo, because he was attempting to gain the favor of the mongolian rulers

genghis khan, because each khanate had a different religion and he united them

the last yuan dynasty ruler, because he was making a final effort to stay in power