Obedience to the Unenforceable

Can you articulate a personal code of ethics? Our management consulting as sociations and firms have their ethical codes. Many of their members commit to them annually by quickly signing a statement agreeing to abide by their code’s provisions. I have done this myself, recognizing that this was the same code I had agreed to for several years running and so just appending my signature. There was no need to read it; if it was valid when I joined, it must be valid still.