A philosophical and ethical term referring to selfless concern for the well-being of others. Often used in academic or formal contexts.
Altruism is considered an important value in many religions.
His actions are based on pure altruism.
利己主義 means egoism or self-interest, the opposite of 利他主義.
愛他主義 is a less common synonym for altruism, sometimes used in psychological contexts.
reciprocal altruism
Compound of 利他 (rita, 'benefiting others') and 主義 (shugi, '-ism'). 利他 is itself a Sino-Japanese word formed from 利 (ri, 'profit, benefit') and 他 (ta, 'other').