They are very enthusiastic to sell more and more Coca-cola. They are always thinking how to increase our business: "When will that day come when there isn't a person in the world who isn't drinking Coca-cola every day?" They are always meditating, always ambitious. So, devotees should be similarly ambitious: "When will that day come when there is not a person in the world who is not chanting Hare Krishna?"
Lecture on Real Success Stories Are in Srimad-Bhagavatam (SB 8.4.15; Ljubljana, Slovenia, 26 Dec 1998)