Mahabharata 14.28.18

अहिंसा सर्वभूतानां नित्यमस्मासु रोचतेप्रत्यक्षतः साधयामो न परोक्षमुपास्महे

ahiṃsā sarvabhūtānāṃ nityamasmāsu rocatepratyakṣataḥ sādhayāmo na parokṣamupāsmahe

Our plain-language meaning of this verse is waiting for scholar review.