C1 noun /ˈiːɡoʊˌɪzəm/
egoism
自我主义
Meaning
An ethical theory that treats self-interest as the foundation of morality; also, excessive preoccupation with oneself.
Example
His decisions were often driven by egoism rather than concern for others.
他的决定常常受到自我主义的驱使,而不是关心他人。