The habit of talking or writing too much about oneself; vanity.

【贬】自负；自大；自我吹嘘。

Egotism and egoism are sometimes interchanged because of similarity in form and in area of meaning.

Egotism 和 egoism 二字因字形和字义相似，故常交换使用。

Ordinarily, egotism is reserved for the braggart's inflated state of vanity and self-importance.

通常 egotism 特指吹牛者自我吹嘘。

Egoism, a less common word, insists upon self-interest as a valid motive in all personal conduct.

Egoism 一字较不常用，其意为视个人的利益为一切个人行为的出发点。

Selfishness is the putting of egoism into action, by showing little regard for the rights or feelings of others.

Selfishness 是将 egoism 付诸行动，无视别人的权利与感觉。

Conceit is overestimation of one's abilities, qualities, or worth, while vanity is undue pride in one's possessions or attributes.

Conceit 是对自己能力、资格、才干的高估，而 vanity 则是过份自傲于本身的财富或优点。