Bhagavad Gita · Chapter 6: The Path of Meditation
Bhagavad Gita 6.9
suhṛnmitrāryudāsīnamadhyasthadveṣyabandhuṣu | sādhuṣvapi ca pāpeṣu samabuddhirviśiṣyate ||
One who keeps the same attitude toward well-wishers, friends, enemies, the indifferent, the neutral, the hateful, and relatives, and toward the good as well as sinners, stands above the rest.
Modern context
This verse lists nine kinds of people, covering everyone we are ever likely to meet: those who wish us well, friends, enemies, the indifferent, those who stay neutral, those we cannot stand, family, the good and the wicked. Samabuddhi, an even mind toward people, is the hardest form of evenness. It does not mean trusting everyone equally or pretending that the wicked are good. It means wishing all of them well and dealing fairly with each, without letting liking or dislike tilt the scales.