Instead of living engrossed in material activities, people throughout the world should take advantage of this movement and chant the Hare Krsna maha-mantra at home with their families. One should also refrain from sinful activities-illicit sex, meat-eating, gambling and intoxication. Out of these four items, illicit sex is very sinful. Every person must get married. Every woman especially must get married. If the women outnumber the men, some men can accept more than one wife. In that way there will be no prostitution in society. If men can marry more than one wife, illicit sex life will be stopped. One can also produce many nice preparations to offer Krsna — grain, fruit, flowers and milk. Why should one indulge in unnecessary meat-eating and maintain horrible slaughterhouses? What is the use of smoking and drinking tea and coffee? People are already intoxicated by material enjoyment, and if they indulge in further intoxication, what chance is there for self-realization? Similarly, one should not partake in gambling and unnecessarily agitate the mind. The real purpose of human life is to attain the spiritual platform and return to Godhead. That is the summum bonum of spiritual realization.

Srila Prabhupada, Cc 2.7.128, ppt.