'bhakti' vina krsne kabhu nahe 'premodaya'
prema vina krsna-prapti anya haite naya
bhakti vina—without devotional service; krsne—unto Krsna; kabhu—at any time; nahe—is not; prema-udaya—development of dormant love for Krsna; prema vina—without love of Krsna; krsna-prapti—attaining Krsna; anya—anything else; haite—from; naya—is not possible.
"Unless one discharges devotional service, one cannot awaken one's dormant love for Krsna, and there is no means to attain Him other than awakening that dormant love.
Link to this page: http://prabhupadabooks.com/cc/antya/4/58