Prabhupāda: For ordinary persons, there are four, I mean to say, difficulties, four imperfectness. Just like we are ordinary man. We have got four imperfectness. What is that imperfectness? That we must commit mistake. We must commit mistake. Our constitutional position at the present moment is such that we are sure to commit mistake. Even greatest politician like Gandhi, he committed mistake, and so many great men, they committed mistake. "To err is human," therefore, it is called, that any . . . any man, however he may be great in the estimation of this world, he is sure to commit mistake. And another imperfection is that he is illusioned.
Woman: Deluded.
Prabhupāda: Illusioned. Now, illusioned you can see. Illusioned means taking one thing for another. That is called illusion. Just like in the desert, accepting the sand as water. That is called illusion. Similarly, every one of us who are identified with this body, he's under illusion. But, that's the false thing, but he has no knowledge. Even President Johnson, he's under illusion. Even the greatest scientist, he's under this illusion. So that one is sure to commit mistake, and one is under illusion, and bhrama, pramāda and vipralipsā . . . vipralipsā means the tendency for cheating.
Woman: That is the fourth?
Prabhupāda: That is the third. First is that one is sure to commit mistake, one is sure to be in illusion, and one is adapted to cheat others. Now, he is imperfect, but he wants to give knowledge to others. That is cheating. Everyone is imperfect, but he wants to give knowledge to others. Then you can ask that, "You are also giving us knowledge?" No, I am not giving you knowledge. I am speaking Bhagavad-gītā. I am giving you knowledge as given by Lord Kṛṣṇa. It is not my knowledge.