Srila Prabhupada said:
"The devotees all over the world are doing the greatest service to Caitanya Mahaprabhu. There is no comparison to their service. I am only an instrument to give you guidance. Actually you are all born to spread Krishna Consciousness all over the world. Go on more and more. The books are selling. That is our greatest success. I am very much pleased."
(From the VedaBase; quoted in a letter to Satadhanya from a disciple of Srila Prabhupada)