Hṛdayānanda: ...the movement who previously had been expert in mathematics, how could he use that for Kṛṣṇa's service if he's expert in mathematics?
Prabhupāda: Mathematics? So you can calculate, "After so many years the whole universe will be destroyed." (laughter) Not of the universe but everyone's life. This body will be destroyed. Bhūtvā bhūtvā pralīyate (BG 8.19). And again you get another body. It will stay for so many years. Again you annihilate. Again you get. In this way eternal time is being wasted.