Mahabharata 6.34.18

समः शत्रौ च मित्रे च तथा मानावमानयोःशीतोष्णसुखदुःखेषु समः सङ्गविवर्जितः

samaḥ śatrau ca mitre ca tathā mānāvamānayoḥśītoṣṇasukhaduḥkheṣu samaḥ saṅgavivarjitaḥ

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