To part with self-conceit.

是同自负决裂。

youdao

Self-conceit may lead to self destruction.

自负可能导致自毁。

youdao

When it comes to this, nothing is left but self-conceit.

这样一来，就只剩下主观虚幻了。

youdao

Jellyby from "Bleak House, " that little tornado of conceit and self-righteousness who set herself to rehabilitating the world as she neglected her own family.

WSJ: Would Ike Have Gone to Libya?

My thesaurus lists vanity, conceit, self-importance and self-absorption.

BBC: Viewpoint: In defence of narcissism