Observance of the law is a matter of principle for us.

遵守法律对于我们是一个原则问题。

《柯林斯英汉双解大词典》

"I am against quotas for women or men as a matter of principle," says Sverre Munck, head of international operations at a media firm.

“原则上，我反对对女性或男性实行性别配额。”一家媒体公司的国际业务主管斯弗尔·蒙克表示。

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Respect for life is a cardinal principle of English law.

尊重生命是英国法律最重要的原则。

《牛津词典》

Pyongyang agreed in principle in 2005 to scrap its nuclear program, including weapons, in return for aid and diplomatic benefits.

VOA: standard.2009.04.15

Note also that Cain is culpable, and for someone to be culpable of something we have to assume some principle that they have violated.

该隐是有罪的,对那些将要犯罪的人,我们制定了了一些规则。

耶鲁公开课 - 旧约导论课程节选

The other thing that we took note as is what happens as l increases, and specifically as l increases for any given the principle quantum number.

另外一个我们要注意的是,ｌ增加时如何变化，特别是对于某个给定的,主量子数ｌ变化时如何变化。

麻省理工公开课 - 化学原理课程节选

We cannot mistake absolutism for principle, or substitute spectacle for politics, or treat name-calling as reasoned debate.

CNN: STORY HIGHLIGHTS

The challenge for Pope Francis is to stand up for principle but allow processes to change in order to support the needs of the organization and its adherents.

FORBES: Pope Francis: What Can He Change?

So much for principle.

ECONOMIST: The Democrats are hitting a few speed bumps