Prabhupāda: Kṛṣṇa consciousness movement means to revive the original consciousness. If one is actually in Kṛṣṇa, he'll be truthful. Truthfulness. These are the qualities. Cleanliness, always clean, taking thrice bath. Cloth clean, mind clean, body clean, activities clean, desire clean, thinking clean—everything clean. No contamination. This is the test, "I am doing all nasty things, and I am advertising 'I am advanced devotee.' " What rascal you are advanced? You are doing all nonsense and you are advanced? But they have no shame even, to call themselves . . . shameless. Shameless, even not gentlemen. Cheating, and still, he is advertising, "I am advanced." But a person who is actually in Kṛṣṇa consciousness or actual . . . sādhu-śāstra-guru-vākya, tinete koriyā aikya. We have to . . . just like if you go to the chemical laboratory, you are testing the characteristic. In the book there is characteristic, even an ordinary chemical. Now they say . . . take, for example, salt. It is called? Chemical name is sodium chloride? Eh?
Devotee: Yes.
Prabhupāda: Sodium chloride. So in the book you'll find sodium chloride, and the characteristics, "It is like this. It is like this. It is like this." The color, the taste, the composition, so many things are there. Similarly . . . how we are testing the purity of sodium chloride? From the books.