Bhagavad Gita 3.26
But a wise man should not disturb the minds of the ignorant, who are attached to action; let him perform his own actions in the right spirit, with concentration on Me, thus inspiring all others to do the same.
न बुद्धिभेदं जनयेदज्ञानां कर्मसङ्गिनाम्।
जोषयेत्सर्वकर्माणि विद्वान् युक्तः समाचरन्॥na buddhibhedaṃ janayedajñānāṃ karmasaṅginām|
joṣayetsarvakarmāṇi vidvān yuktaḥ samācaran||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).