व्यवसायात्मिका बुद्धिरेकेह कुरुनन्दन। बहुशाखा ह्यनन्ताश्च बुद्धयोऽव्यवसायिनाम्
vyavasāyātmikā buddhir ekeha kuru-nandana bahu-śhākhā hyanantāśh cha buddhayo ’vyavasāyinām
By its means, the straying intellect becomes steadied in contemplating one object only; whereas the minds of the irresolute stray into innumerable bypaths.
Translated by Shri Purohit Swami
Here, O joy of the Kurus, there is only one single-pointed determination; many-branched and endless are the thoughts of the indecisive.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
vyavasāya-ātmikā—resolute; buddhiḥ—intellect; ekā—single; iha—on this path; kuru-nandana—descendent of the Kurus; bahu-śhākhāḥ—many-branched; hi—indeed; anantāḥ—endless; cha—also; buddhayaḥ—intellect; avyavasāyinām—of the irresolute