John Lennon: But, you see, Maharishi said exactly the same thing about his mantra's coming from the Vedic, with seemingly as much authority as you, and he was probably right. So how... It's like having too many fruits on a plate, and you can't only eat two of them.
Prabhupāda: No. If mantra is coming down in that way, then it is potency; the potency is there.
John Lennon: But Hare Kṛṣṇa is the best one.
Prabhupāda: Yes.
Yoko Ono: Well, if Hare Kṛṣṇa is the best one, what is the reason why we have to bother to even say anything else other than this one?
Prabhupāda: You don't require to bother to say anything else. We say that Hare Kṛṣṇa mantra is sufficient for one's perfection.
George Harrison: Surely isn't it like flowers? If somebody may prefer roses and somebody may like carnations better... Isn't it really a matter for the devotee, that one person may find Hare Kṛṣṇa is more beneficial to his spiritual progress, and yet somebody else, some other mantra may be more beneficial? Isn't it like just a matter of taste? Like judging a flower. They're all flowers, but some people may like one better than the other.
Prabhupāda: But still, there is distinction. The rose flower is considered better than simply a flower without any flavor.