Śrīmad-Bhāgavatam · Text 10.33.30
Who is speaking and story frame
नैतत् समाचरेज्जातु मनसापि ह्यनीश्वर: ।
विनश्यत्याचरन् मौढ्याद्यथारुद्रोऽब्धिजं विषम् ॥ ३० ॥
naitat samācarej jātu
manasāpi hy anīśvaraḥ
vinaśyaty ācaran mauḍhyād
yathārudro ’bdhi-jaṁ viṣam
One who is not a great controller should never imitate the behavior of ruling personalities, even mentally. If out of foolishness an ordinary person does imitate such behavior, he will simply destroy himself, just as a person who is not Rudra would destroy himself if he tried to drink an ocean of poison.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.