If you associate with sattva-guṇa, then you are promoted to the higher planetary system: Janaloka, Maharloka, Tapoloka. But these rascals, they do not know; still they make an estimate. And what is that estimate? Wherever they go they find only rocks and sands. That's all. There are so many lokas. Each loka is full of living entities, and these rascals are simply taking photograph of rocks and sands. Just see their position. And they are passing on as scientist. How misleading these things are, and how people are being misled, you see.
So Kali-yuga is a very precarious condition: no knowledge; ignorance. And no nirvṛtti. Everyone is in pravṛtti. So whatever their condition may be, but if you want actually freedom from this material conditional life, then you should follow ācārya. Ācāryavān puruṣaḥ. Ācāryopāsanam. Kṛṣṇa is personally acting as ācārya. He's coming again as ācārya, Śrī Caitanya Mahāprabhu. He has got so many representatives ācārya: Śrī Rāmānujācārya, Madhvācārya, Nimbārka, Viṣṇu Svāmī, so many ācāryas. Evaṁ paramparā-prāptam (BG 4.2). So take lesson from the ācāryas. Śukadeva Gosvāmī is ācārya. Vyāsadeva is ācārya. He's making the next ācārya by teaching him—adhyāpayām āsa, śukam adhyāpayām āsa (SB 1.7.8)—so that he is becoming ācārya. So we have to go the ācārya and take lesson.