acintyāḥ khalu ye bhāvā
na tāṁs tarkeṇa yojayet
prakṛtibhyaḥ paraṁ yac ca
tad acintyasya lakṣaṇam
acintyāḥ - inconceivable; khalu - certainly; ye - those; bhāvāḥ - subject matters; na - not; tān - them; tarkeṇa - by argument; yojayet - one may understand; prakṛtibhyaḥ - to material nature; param - transcendental; yat - that which; ca - and; tat - that; acintyasya - of the inconceivable; lakṣaṇam - a symptom.
This verse from the Mahābhārata (Bhīṣma-parva 5.22) is also quoted in the Bhakti-rasāmṛta-sindhu (2.5.93), by Śrīla Rūpa Gosvāmī.