Chapter 2 · The Yoga of Knowledge · Krishna said
Bhagavad Gita 2.55 — Content within
श्रीभगवानुवाच। प्रजहाति यदा कामान्सर्वान्पार्थ मनोगतान्। आत्मन्येवात्मना तुष्टः स्थितप्रज्ञस्तदोच्यते ॥
śrībhagavānuvāca | prajahāti yadā kāmānsarvānpārtha manogatān | ātmanyevātmanā tuṣṭaḥ sthitaprajñastadocyate ||
Meaning
Krishna said: When a person gives up all the desires of the mind and is content in the Self by the Self, Partha, that person is called one of steady wisdom.