नैव किंचित्करोमीति युक्तो मन्येत तत्त्ववित्। पश्यन् श्रृणवन्स्पृशञ्जिघ्रन्नश्नन्गच्छन्स्वपन् श्वसन् ॥

naiva kiñchit karomīti yukto manyeta tattva-vit paśhyañ śhṛiṇvan spṛiśhañjighrann aśhnangachchhan svapañśhvasan pralapan visṛijan gṛihṇann unmiṣhan nimiṣhann api indriyāṇīndriyārtheṣhu vartanta iti dhārayan

"I do not anything," should think the harmonised one, who knoweth the essence of things; seeing, hearing, touching, smelling, eating, moving, sleeping, breathing.

In plain words: Krishna says that a wise and steady person thinks, "I am not really the one doing anything." They think this even while seeing, hearing, touching, smelling, eating, walking, sleeping and breathing.