Principle & Policy

"As you are, I was. As I am, you will be. (tu fui ego eris)
A gravestone inscription reminding the reader that death is unavoidable"

"As nouns the difference between principle and policy is that principle is a fundamental assumption while policy is (obsolete) the art of governance; political science or policy can be a contract of insurance.
As verbs the difference between principle and policy is that principle is to equip with principles; to establish, or fix, in certain principles; to impress with any tenet or rule of conduct while policy is to regulate by laws; to reduce to order."