One should have firm faith that he will achieve all success in life by following those scriptures that describe the glories of the Supreme Personality of Godhead, Bhagavān. At the same time, one should avoid blaspheming other scriptures. One should rigidly control his mind, speech and bodily activities, always speak the truth, and bring the mind and senses under full control.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
श्रद्धां भागवते शास्त्रेऽनिन्दामन्यत्र चापि हि । मनो वाक्कर्मदण्डं च सत्यं शमदमावपि
śraddhāṃ bhāgavate śāstre'nindāmanyatra cāpi hi | mano vākkarmadaṇḍaṃ ca satyaṃ śamadamāvapi
SB 11.3.26