If Ethics is the foundation of knowledge of right and wrong, how do get that knowledge? From what foundation do we derive an understanding of Ethics?
Knowledge and understanding are two separate things, so let’s address the knowledge of ethics first.
The axiom, “I think, therefore I am” was made famous my Rene Descartes. It is a simple proof of existence. If one is questioning whether or not they exist, the fact that there is an “I” thinking, is proof of existence. Questioning one’s existence may seem odd, but so is questioning whether or not ethics exist. Just like existence itself needed a proof, ethics requires the same.
“I feel, therefore I know ethics” is a philosophical proof that takes into account the physical and emotional requirements of ethics. If a thing can feel physical input and emotional distress, it has knowledge of ethics.