Sāṃkhya Kārikā verse 13

sattvaṃ laghu prakāśakam-iṣṭam-upaṣṭambhakaṃ calaṃ ca rajaḥ |
guru varaṇakam-eva tamaḥ pradīpavat-ca-arthataḥ vṛttiḥ ||

sattva - clarity; the quality of puritylaghu - lightnessprakāśa - clearness, brightness, splendour, lustre, light; visible, shining, brightiṣṭa - wished, desired; liked, beloved; chosenupaṣṭambhaka - strengthening; stimulation; excitingcala - agitation. disturbed, unsteadyca - andrajas - excitingguru - teachervaraṇaka - covering, covering over, concealingeva - thustamas - obscuring; mental darkness, ignorance, illusion, error; deprived of the eye's light or sight; darkness, gloompradīpavat - like a lamparthatā - objectsvṛtti - fluctuation; modification; turning; set in motion, course of action, behaviour, movement; activity, function; profession