Katha Upanishad Verse 1.3.6

When the intellect is possessed of discrimination and the mind is under control, the senses become obedient and disciplined, like good horses guided by an expert driver.

Sanskrit Verse

यस्तु विज्ञानवान्भवति युक्तेन मनसा सदा ।
तस्येन्द्रियाणि वश्यानि सदश्वा इव सारथेः ॥ ६ ॥

Transliteration

yastu vijñānavānbhavati yuktena manasā sadā |
tasyendriyāṇi vaśyāni sadaśvā iva sāratheḥ || 6 ||

Translation

But of him who knows and has a mind always controlled, the senses are always controllable as the good horses of the driver.

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Cross-references:

• Dhammapada Verse 17.2 (The true charioteer checks rising anger)