Śrīmad Bhāgavatam 7.5.30
matir na kṛṣṇe parataḥ svato vā
mitho 'bhipadyeta gṛha-vratānām
adānta-gobhir viśatāḿ tamisraḿ
punaḥ punaś carvita-carvaṇānām
śrī-prahrādaḥ uvāca — Prahlāda Mahārāja said; matiḥ — inclination; na — never; kṛṣṇe — unto Lord Kṛṣṇa; parataḥ — from the instructions of others; svataḥ — from their own understanding; vā — either; mithaḥ — from combined effort; abhipadyeta — is developed; gṛha-vratānām — of persons too addicted to the materialistic, bodily conception of life; adānta — uncontrolled; gobhiḥ — by the senses; viśatām — entering; tamisram — hellish life; punaḥ — again; punaḥ — again; carvita — things already chewed; carvaṇānām — who are chewing.
Prahlāda Mahārāja replied: Because of their uncontrolled senses, persons too addicted to materialistic life make progress toward hellish conditions and repeatedly chew that which has already been chewed. Their inclinations toward Kṛṣṇa are never aroused, either by the instructions of others, by their own efforts, or by a combination of both.