The six darśanas are the schools that accept the authority of the Vedas: Nyāya, logic; Vaiśeṣika, atomistic metaphysics; Sāṃkhya, the enumeration of principles; Yoga, the discipline of the mind; Mīmāṃsā, the exegesis of ritual; and Vedānta, the exegesis of the Upaniṣads. Buddhism, Jainism and the materialists are counted as heterodox.
Ṣaḍ-darśana
The six orthodox schools of Indian philosophy, paired as Nyāya–Vaiśeṣika, Sāṃkhya–Yoga and Mīmāṃsā–Vedānta.
Also: six schools