Stick to your principles and tell him you won't do it.

要恪守自己的原则，告诉他你绝不会干的。

《牛津词典》

The school offers two modules in Teaching English as a Foreign Language, viz. Principles and Methods of Language Teaching and Applied Linguistics.

该校提供两个模块用于英语作为外语的教学，即语言教学的原理方法和应用语言学。

《柯林斯英汉双解大词典》

We should stick to the principles and be flexible as well.

既要有原则性，也要有灵活性。

《新英汉大辞典》

The president said a fundamental part of U.S.global strategy is to live up to the nation's principles and support basic human rights.

VOA: standard.2010.05.22

When a community seeks federal funds for separate programs like After-school Programs, Sports Programs, homely shelters, those federal funds should be used in accordance with Constitutional principles and federal law.

当一个团体寻求为其各个项目获得联邦基金时,比如课后项目，体育项目，家庭庇护所，那些联邦基金的使用应该符合,宪法的原则和联邦法律。

普林斯顿公开课 - 人性课程节选

And so, maybe it's just a matter of each person having his or her own principles and there's nothing more to be said about it, no way of reasoning.

也许这本就是智者见智，仁者见仁的问题,多说无益，也无从论证。

耶鲁公开课 - 公正课程节选

But that would have been contrary to Johnson Controls' business principles and cultural environment.

FORBES: An interview with Stephen Roell, CEO of Johnson Controls.

As a father, I started by laying out some nurturing father principles and assumptions.

CNN: As a father, 'I have to be the best human I can be'

Some industries are beginning to define industry-specific water stewardship principles and water accounting standards.

FORBES: A New Tool To Manage Companies' Growing Water Risks