If you deny that any principles of conduct at all are common to and admitted by all men who try to behave reasonably - well, I don't see how you can have any ethics or any ethical background for law.
Not that pleading can be taken as a test, for the forms of action, notably Debt, ignore the fundamental difference between duties imposed by law and duties created by the will of the parties.
The mathematical facts worthy of being studied are those which, by their analogy with other facts, are capable of leading us to the knowledge of a physical law.
After the war, prompted by the Cardinal Archbishop of Paris, I entered Parliament so that a priest could speak out for the poor, as canon law at that time still permitted.
Sure, I always chose rebels to identify with - I still do - but to me a rebel isn't so much someone who breaks the law as someone who goes against the odds.