Prabhupada Letters :: 1970.

"Yes, that is the way of understanding the secret of Krsna Consciousness. That is the Vedic way. Unflinching faith in Krsna and similarly in the bona fide Spiritual Master. That is the best qualification for spreading the movement of Lord Caitanya."

Prabhupada Letters :: 1971.

"We shall have a unique position all over the world provided we stick to the principles, namely unflinching faith in Spiritual Master and following the regulative principles. Then our men will conquer the world."