Ethics (also known as moral philosophy) is that branch of philosophy which addresses questions about morality. The word 'ethics' is "commonly used interchangeably with 'morality' to mean the subject matter of this study; and sometimes it is used more narrowly to mean the moral principles of a particular tradition, group, or individual."
Likewise, certain types of ethical theories, especially deontological ethics, sometimes distinguish between 'ethics' and 'morals': "Although the morality of people and their ethics amounts to the same thing, there is a usage that restricts morality to systems such as that of Kant, based on notions such as duty, obligation, and principles of conduct, reserving ethics for the more Aristotelian approach to practical reasoning, based on the notion of a virtue, and generally avoiding the separation of 'moral' considerations from other practical considerations.
Likewise, certain types of ethical theories, especially deontological ethics, sometimes distinguish between 'ethics' and 'morals': "Although the morality of people and their ethics amounts to the same thing, there is a usage that restricts morality to systems such as that of Kant, based on notions such as duty, obligation, and principles of conduct, reserving ethics for the more Aristotelian approach to practical reasoning, based on the notion of a virtue, and generally avoiding the separation of 'moral' considerations from other practical considerations.
