It is not very difficult to follow the four regulative principles. No illicit sex. There is no question of stopping sex, but no illicit sex. Unfortunately, they're so unfortunate that although they have got their wife, they go to another girl, and although the girl has one husband, she goes to another man. So unfortunate. These things should be stopped if you'll want to be serious; otherwise, make a farce and do whatever you like. I cannot give you protection. That is not possible.
So you must have to follow these rules and regulation if you are serious. Then take initiation. Otherwise, don't make farce. Don't make farce. That is my request. One has to be very determined, bhajante mam drdha-vratah. This word is used in the Bhagavata: drdha-vratah, strong determination: "Yes, in this life I shall go back to home, back to Godhead." This is determination. And what is the difficulty? No difficulty. Chants Hare Krsna mantra. You are taking the beads, sixteen rounds. You can be finished, utmost two hours or three hours. So you have got twenty-four hours. If you want to sleep, of course, twenty-three hours, that is another thing. You have to minimize your sleeping. If you cannot finish sixteen rounds, then you must not sleep on that day; you must not eat. Why don't you forget to eat, forget? Why do you forget chanting Hare Krsna? This is negligence, aparadha, offense. Rather, you should forget your sleeping and eating and must finish sixteen rounds. This is called determination. This is called determination. So you are welcome to take initiation, but if you are neglectful, if you want to make it a farce, that is your business. I cannot give you any protection.
From Srila Prabhupada's lecture on Srimad-Bhagavatam 1.16.35 — January 28, 1974, Honolulu