A person, though he be even the most sinful man, can at once be purified by systematic contact with a pure Vaisnava…. So by the order of Lord Sri Caitanya Mahaprabhu, the cult of Srimad-Bhagavatam or the Bhagavad-gita can be preached all over the world, reclaiming all persons willing to accept the transcendental cult. Such cultural propaganda by the devotees will certainly be accepted by all persons who are reasonable and inquisitive, without any particular bias for the custom of the country.

Srila Prabhupada Srimad-Bhagavatam 2.4.18 purport