यस्य सर्वे समारम्भाः कामसङ्कल्पवर्जिताः। ज्ञानाग्निदग्धकर्माणं तमाहुः पण्डितं बुधाः
yasya sarve samārambhāḥ kāma-saṅkalpa-varjitāḥ jñānāgni-dagdha-karmāṇaṁ tam āhuḥ paṇḍitaṁ budhāḥ
The wise call him a sage, for whatever he undertakes is free from the motive of desire, and his deeds are purified by the fire of wisdom.
Translated by Shri Purohit Swami
He whose undertakings are all devoid of desires and selfish purposes, and whose actions have been burned by the fire of knowledge, the wise call him a sage.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
yasya—whose; sarve—every; samārambhāḥ—undertakings; kāma—desire for material pleasures; saṅkalpa—resolve; varjitāḥ—devoid of; jñāna—divine knowledge; agni—in the fire; dagdha—burnt; karmāṇam—actions; tam—him; āhuḥ—address; paṇḍitam—a sage; budhāḥ—the wise