न मे पार्थास्ति कर्तव्यं त्रिषु लोकेषु किञ्चन ।
नानवाप्तमवाप्तव्यं प्रवर्तेऽथ च कर्मणि ॥
३-२१ ॥
na me pārthāsti kartavyaṃ triṣu lokeṣu kiñcana |
nānavāptamavāptavyaṃ pravarte'tha ca karmaṇi ||
3-21 ||
There is nothing in the three worlds, O Pārtha, that I must do, nothing unattained that I need attain — and yet I engage in action.