fundamental principles 基本原理
moral principles 道德原则
economic principles 经济原则
principles of physics 物理原理
A: Do you always follow these principles?
A：你总是遵循这些原则吗？
B: Yes, they guide everything I do.
B：是的，它们指导我所做的一切。
1) 基本原理或定律
2) 道德准则或信条
3) 基本原则或规范
1. 基本原理，准则
noun
1. A fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning.
Synonym: rules, tenets, standards