Guest (2): Your Divine Grace, do you see a time coming when all mankind will be united?
Prabhupāda: That is very difficult to say, but we can be united on the spiritual platform not on the material platform. It is not possible.
Guest (2): Do you think that that is, that stage is possible within this generation?
Prabhupāda: It is possible at any time provided people take to spiritual life, but they'll not take to it. For example, one of the items of spiritual life is no meat-eating. So do you think this philosophy will be taken by everyone? And this is one of the items of spiritual life, no meat-eating.
Guest (2): Is that a necessary...
Prabhupāda: Oh, yes. Without... If you don't stop meat-eating, you cannot understand what is spiritual life. A sinful life cannot understand what is God, what is devotion. It is not possible.
Guest (2): And is that the same for others...?
Prabhupāda: The sinful, yes. Four items we prohibit our students. They do not indulge. Illicit sex life, meat, fish, egg-eating, intoxication up to cigarette smoking, drinking tea, coffee, and gambling. These are the four pillars of sinful life. So unless one gives up these four things he cannot understand what is God, what is God's kingdom, what is our business. Nobody can understand.
Guest (2): Drinking tea and coffee also?
Prabhupāda: Oh, yes. It is also intoxication.