Final answer:
Ethics is a discipline that establishes principles of good and right behavior. The doctrine of vocation helps individuals make ethical decisions based on their specific role and responsibilities in society.
Step-by-step explanation:
Ethics is a discipline created to establish principles of the good and those of right behavior. It deals with the basic principles that serve as the basis for moral rules. The doctrine of vocation helps us ethically by providing a framework for individuals to understand their role and responsibilities in society, and to make ethical decisions based on their specific vocation or occupation.