Subject for Socrates WSJ Crossword Clue

Consider what a philosopher might ponder about right and wrong.

?????? is the branch of philosophy dealing with moral principles and values that govern human conduct.

Socrates, the classical Greek philosopher, is renowned for his contributions to the field of ??????, which involves the study of moral principles and how they influence human behavior. The clue suggests a topic that Socrates would have explored or taught, leading to the answer '??????.'

Standards of conduct, Law school course, Important course in business, law and medical school, Important subject in law school, Focus of a House committee