Sāṃkhya Kārikā verse 2

dṛṣṭavat-ānuśravikaḥ saḥ hi-aviśuddhi-kṣayā-atiśaya-yuktaḥ |
tat-viparītaḥ śreyān vyaktāḥ avyakta-jña-vijñānāt ||

dṛṣṭa - seenjña - knowingvijñāna - special knowing, comprehensiontat - thatvyakta - visible

Commentaries and Reflections

Paul Harvey:

The usual means to reduce suffering are linked to impurity, decay and excess.