एतान्यपि तु कर्माणि सङ्गं त्यक्त्वा फलानि च। कर्तव्यानीति मे पार्थ निश्िचतं मतमुत्तमम् ॥

etāny api tu karmāṇi saṅgaṁ tyaktvā phalāni cha kartavyānīti me pārtha niśhchitaṁ matam uttamam

But even these actions should be done leaving aside attachment and fruit, O Pârtha; that is my certain and best belief.

In plain words: Krishna says even these good acts should be done without clinging to them and without wanting rewards. He calls this his firm and best view.