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SB 6.16.64
tvam etac chraddhaya rajann
apramatto vaco mama
jñana-vijñana-sampanno
dharayann asu sidhyasi
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O King, if you accept this conclusion of Mine, being unattached to material enjoyment, adhering to Me with great faith and thus becoming proficient and fully aware of knowledge and its practical application in life, you will achieve the highest perfection by attaining Me.