|Madhya-līlā||Chapter 22: The Process of Devotional Service|
Bhaktivedanta VedaBase: Śrī Caitanya Caritāmṛta Madhya 22.29
jñānī jīvan-mukta-daśā pāinu kari' māne
vastutaḥ buddhi 'śuddha' nahe kṛṣṇa-bhakti vine
jñānī — the speculative philosophers; jīvan-mukta-daśā — the stage of liberation even while in this body; pāinu — I have gotten; kari' — taking; māne — considers; vastutaḥ — factually; buddhi — intelligence; śuddha — purified; nahe — not; kṛṣṇa-bhakti vine — without devotional service to Kṛṣṇa.
"There are many philosophical speculators [jñānīs] belonging to the Māyāvāda school who consider themselves liberated and call themselves Nārāyaṇa. But their intelligence is not purified unless they engage in Kṛṣṇa's devotional service.
His Divine Grace A. C. Bhaktivedanta Swami Prabhupāda, Founder Ācārya of the International Society for Krishna Consciousness