selfishness; selfish motive
Refers to personal, self-centered feelings or motives, often used in contexts where impartiality or fairness is expected.
彼の判断には私心がなかった。
His judgment was free of selfish motives.
私
I will put aside selfishness and act for everyone's sake.
Compound of 私 (private, personal) and 心 (heart, mind), literally 'private heart'. The exact historical derivation is uncertain, but the word has been used in classical Chinese and Japanese to mean selfish motives.