principle

我不能批准这个行为；这是个原则问题。

I cannot approve this action; it's a matter of ___principle.

该组织运作的原则是所有成员拥有相同的权利。

The organization works on the ___principle that all members have the same rights.

该组织遵循所有成员权利平等的原则。

The organization operates on the ___principle that all members have equal rights.