1. Srila Prabhupada came to America for this purpose

    I came to America for this purpose. Papi-tapi jata chilo hari-name uddharilo, tara saksi jagai madhai. Hari-name uddharilo, simply by chanting Hare Krsna mantra, Caitanya Mahaprabhu delivered all sinful men, suffering humanity. Is it? What is the evidence? Tara saksi jagai madhai. Just see, Jagai and Madhai was drunkard. So I thought, "Why one Jagai and Madhai? Why not hundreds and thousands of them, if hari-nama has got so much power?" So actually it has done so. Now you also take it very seriously.

    (Srila Prabhupada — June 11, 1975, Honolulu)