I have made it a principle to pursue my self-interest in my business, subject to legal and ethical limitations, and to be guided by the public interest as a public intellectual and philanthropist.

商场中既在法律和道德的界限之内追逐个人利益，又以公共利益作为指导，是我作为一名公共知识分子兼慈善家的原则。

youdao

The European retreat marked a stark triumph of self-interest over principle.

欧盟的退却标志着自利主义对抗原则主义的大获全胜。

youdao

Based on or marked by a concern for self-interest rather than principle; self-interested.

基于私利的依自身利害而定的，基于私利而非原则考虑的；自私自利。

youdao

Those figures are static or in some countries worsening: given the demography (Romani families are usually large), improving schooling is a matter of urgent European self-interest as well as of principle.

ECONOMIST: Europe's Romanies

In this electoral season, frenzied horse-trading has created some unholy alliances, and what many see as a wholesale sacrifice of principle for maslah (self-interest).

ECONOMIST: Lebanon

And yes, for all the talk of principle, many Tories might just be voting for electoral self-interest rather than an enthusiasm for improving democracy.

BBC: Boundaries: a running sore?