Socrates held that the unexamined life is not worth living; Juana might have added that the unexamined moral life is not only incomplete but dangerous — the person who acts on inherited ethics without examination is a tool of whatever system did the installing. The examined moral life does not require philosophical training but it does require the willingness to ask, about any action: why do I think this is right, what does it cost others, and could I be wrong? The discomfort of that question, held with honesty, is the beginning of ethics.
Each step builds on the last.