Bhagavad Gita · Chapter 2: The Path of Understanding
Bhagavad Gita 2.68
तस्माद्यस्य महाबाहो निगृहीतानि सर्वशः ।
इन्द्रियाणीन्द्रियार्थेभ्यस्तस्य प्रज्ञा प्रतिष्ठिता ॥
tasmādyasya mahābāho nigṛhītāni sarvaśaḥ | indriyāṇīndriyārthebhyastasya prajñā pratiṣṭhitā ||
Therefore, mighty-armed Arjuna, one whose senses are completely withdrawn from their objects has wisdom that is firmly established.
Modern context
Krishna closes the argument where he began it: steady wisdom belongs to the one whose senses are in hand. The refrain 'his wisdom is firmly established' has now sounded four times. Wisdom, in this portrait, is less a matter of knowing more than of being less easily carried away.