धीर्जायते तदा तादृग्ज्ञानमज्ञानशब्दितम्। बौद्धं तस्य च तत्पौंस्नं पोषणीयं च पोष्टृ च॥४०॥

Then (tadā) such a knowledge (tādṛk-jñānam) is called ignorance (ajñāna-śabditam) which pertains to the intellect (bauddham) --i.e. bauddhājñāna--. And (ca) this (bauddhājñāna) (tasya) is nourished by (pauruṣājñāna) and nourishes pauruṣājñāna (tad-pauṁsnaṁ poṣaṇīyaṁ ca poṣṭṛ ca)||