Two things for liberation
Don’t take anything which is not Krsna prasadam and don’t talk anything which is not Krsna. Then you become liberated. Your path of liberation is open. Two things: don’t talk anything except Krsna, don’t eat anything except Krsna prasadam. Is it very difficult? Srila Prabhupada, Initiation Lecture — December 1, 1968, Los Angeles