Nyāya Sūtras 2.37

2.37

tad idaṃ tattvajñānaṃ niḥśreyasādhigamārthaṃ yathāvidyaṃ veditavyam/ iha tv adhyātmavidyāyām ātmādijñānaṃ tattvajñānam/ niḥśreyasādhigamo 'pavargaprāptiḥ//1//

This knowledge of reality, for the sake of attaining the highest good, is to be understood according to each discipline. But here, in the science of the inner self, the knowledge of the self and the rest is the knowledge of reality. Attainment of the highest good is the attainment of final release. || 1