CC Madhya 24.170
yeṣāṁ nirbandhinī matiḥ
acirād eva sarvārthaḥ
sidhyaty eṣām abhīpsitaḥ
sat-dharmasya — of the path of progressive devotional service; avabodhāya — for understanding; yeṣām — those whose; nirbandhinī — unflinching; matiḥ — intelligence; acirāt — very soon; eva — certainly; sarva-arthaḥ — the goal of life; sidhyati — becomes fulfilled; eṣām — of these persons; abhīpsitaḥ — desired.
“ ‘Those who are eager to awaken their spiritual consciousness and who thus have unflinching, undeviated intelligence certainly attain the desired goal of life very soon.’
This is a quotation from the Nāradīya Purāṇa.