Srila Prabhupada: The difference between others and us is that we are the only movement that can actually teach one how to know God and how to love Him. We are presenting the science of how one can know Krsna, the Supreme Personality of Godhead, by practicing the teachings of the Bhagavad-gita and the Srimad-Bhagavatam. They teach us that our only business is to love God.

From The Science of Self-Realization