even-mindedness

Etymology
From.

Noun

 * 1) The state of being calm, stable and composed, especially under stress; equanimity.
 * 2) * 1976, Bstan-paʼi-ñi-ma (Panchen Lama IV), Jeffrey Hopkins, Practice and theory of Tibetan Buddhism:
 * This is done having first attained even-mindedness towards all sentient beings.