A pseudo-scientific theory which says it is impossible for you to act contrary to what you believe to be in your best interest. If it is true, Ethical Egoism is pointless since you cannot help acting in what you believe to be your best interest.
PSYCHOLOGICAL EGOISM
Meaning of PSYCHOLOGICAL EGOISM in English
Theological and philosophical biography English dict. Английский словарь богословской и философской биографии . 2012