niścitaṁ matam uttamam

etani-all this; api-certainly; tu-must; karmani-activities; saṅgam-association; tyaktva-renouncing; phalani-results; ca-also; kartavyani-as duty; iti-thus; me-My; partha-O son of Prtha; niscitam-definite; matam-opinion; uttamam-the best.