Kṛṣṇa is jagad-guru. He is the original teacher. That teacher is teaching personally in the Bhagavad-gītā, and we rascals, we do not take the lesson. Just see. Therefore we are mūḍhas. Anyone who is unfit to take the lessons given by the jagad-guru, he is mūḍha. Therefore our test tube is: if one does not know Kṛṣṇa, if one does not know how to follow Bhagavad-gītā, we immediately take him as a rascal. That's all. Never mind he . . . he may be prime minister, he may be high-court judge, or . . . no. "No, he is prime minister. He is high-court judge. Still mūḍhaḥ?" Yes. "How?" Māyayāpahṛta-jñānāḥ (BG 7.15): "He has no knowledge of Kṛṣṇa. He is covered by māyā." Māyayāpahṛta-jñānā āsuraṁ bhāvam āśritāḥ. Therefore he's mūḍha. So straightly preach. Of course, you may say all these things in soft language just to . . . not to make any agitation, but anyone who does not accept Kṛṣṇa as the jagad-guru and does not take His lessons, he is a rascal. Just like this mūḍha in Jagannātha Purī. He says that, "You take next birth. Then you can . . ." That mūḍha, take him as rascal. Why? He is jagad-guru; he is also says: "I am jagad-guru." But he is not jagad-guru. He has not even seen what is jagat. He is a frog, and he is claiming jagad-guru. So he's mūḍha. Kṛṣṇa says. He is mūḍha because he has not taken the lessons given by Kṛṣṇa.
Kṛṣṇa personally says, māṁ hi pārtha vyapāśritya ye 'pi syuḥ pāpa-yonayaḥ (BG 9.32). Pāpa-yoni . . . those who are born in the family of mlecchas, yavanas or the śvapacas, they are called pāpa-yoni. But Kṛṣṇa says: "Even they, the born in the pāpa-yoni . . ." Yathā bījaṁ yathā . . . yathā bījaṁ yathā yoni. The father is the bījam. He gives the semina, and mother is the source of birth. So combination of father, mother . . . so pāpa-yoni. Therefore yoni. Yoni means source of birth. So Kṛṣṇa says pāpa-yonayaḥ, plural number, yonayaḥ. Yoni, this word, śabda, so the plural number, yonayaḥ. There are many different types . . . that is also mentioned in the Śrīmad-Bhāgavatam. What are that? Kirāta-hūṇāndhra-pulinda-pulkaśā ābhīra-śumbhā yavanāḥ khasādayaḥ ye 'nye ca pāpāḥ (SB 2.4.18). These are mentioned, pāpa-yoni. And less than them, if there are still pāpa-yoni, śudhyanti yad-apāśrayāśrayāḥ: if such persons take shelter of a pure devotee, he's śudhyanti. This is the śāstric injunction. He becomes purified, because the pure devotee knows how to purify the pāpa-yoni. He knows. That rascal is not a pure devotee. He does not know. Therefore he thinks, "Unless the birth is changed, how one can be purified?" He does not know the process.
Therefore śāstra says that the Māyāvādīs, rascals, they should not become guru because they do not know how to purify the disciple. The Māyāvādī rascals, they do not know. They think after changing this body, one becomes purified. No. Therefore śāstra says that ṣaṭ-karma-nipuṇo vipro mantra-tantra-viśāradaḥ (Padma Purāṇa). A person, vipra, brāhmaṇa, he is expert in six kinds of brahminical business, ṣaṭ-karma. Ṣaṭ means six, and karma means activities. Ṣaṭ-karma-nipuṇo vipraḥ. Nipuṇa. Nipuṇa, very expert. He knows all the brahminical activities. What is that? Paṭhana-pāṭhana yajana-yājana dāna-pratigraha. He knows, he is educated. Brāhmaṇa means paṇḍita. He's personally educated, and he educates others. That is brāhmaṇa. Brāhmaṇa does not keep himself educated. That education, that means he is brāhmaṇa, he makes others also brāhmaṇa. That is brāhmaṇa. Not that, "I remain brāhmaṇa, I remain Vaiṣṇava, and others may suffer." No. Paṭhana-pāṭhana. He must educate others. That is the business of brāhmaṇa. Para-duḥkha-duhkhī. That is Vaiṣṇava. Vaiṣṇava means who is unhappy by seeing others unhappy.