B.G 3.25

सक्ताः कर्मण्यविद्वांसो यथा कुर्वन्ति भारत। कुर्याद्विद्वांस्तथासक्तश्चिकीर्षुर्लोकसङ्ग्रहम् ॥२५॥

saktāḥ karmaṇyavidvāṁsō yathā kurvanti bhārata। kuryādvidvāṁstathāsaktaścikīrṣurlōkasaṅgraham ॥25॥

[सक्ताः कर्मणि अविद्वांसो यथा कुर्वन्ति भारत। कुर्यात् विद्वान् तथा असक्तः चिकीर्षुः लोकसङ्ग्रहम्॥
saktāḥ = being attached to the results; karmaṇi = in action; avidvāṁsō = the ignorant; yathā = as; kurvanti = perform; bhārata = O Arjuna; kuryāt = should act; vidvān = the learned; tathā = in that way; asaktaḥ = unattached; cikīrṣuḥ = desiring to promote; lōkasaṅgraham = for the welfare of the world;]

O Arjuna, just as the ignorant perform actions attached to the results, so also, the learned should act desiring to promote the welfare of the world, without attachment to results.