The study of moral and immoral entities delves into the fundamental nature of entities that are inherently good or evil, exploring their ontological status and their impact on our understanding of morality.

Moral Realism asserts that moral values and properties exist independently of human beliefs, emotions, or cultural norms. It posits that there are objective moral facts that are true or false regardless of individual perspectives.

Moral Nihilism rejects the notion of objective moral values, arguing that there are no inherent moral properties or distinctions. It asserts that moral statements are neither true nor false but rather expressions of personal preferences or emotions.

Moral Relativism maintains that moral values and standards are relative to the specific cultural, historical, and social contexts in which they arise. It asserts that what is considered right or wrong varies across different societies and cultures.

Teleology, also known as Consequentialism, evaluates the morality of an action based on its consequences. It asserts that the rightness or wrongness of an action is determined by the overall good or harm it produces.

Deontological Ethics, often associated with Immanuel Kant, emphasizes the importance of duty and universal moral principles in determining the morality of an action. It asserts that certain actions are inherently right or wrong regardless of their consequences.

Virtue Ethics, as propounded by Aristotle, emphasizes the importance of developing virtuous character traits and dispositions in order to lead a morally good life. It focuses on the agent's virtues and moral excellence rather than solely on the rightness or wrongness of specific actions.

Divine Command Theory asserts that the morality of an action is determined by whether it is commanded or prohibited by a divine being or religious authority. It posits that moral values and obligations are derived from the will of God or other supernatural entities.

Natural Law Theory posits that there are universal moral principles that are discoverable through reason and observation of the natural world. It asserts that these principles are rooted in the inherent nature and purpose of human beings.

Existentialism, particularly as propounded by Jean-Paul Sartre, emphasizes the importance of individual freedom and choice in determining the morality of an action. It asserts that individuals are responsible for creating their own values and meaning in life, and that moral choices are ultimately subjective and personal.

Kantian Ethics, developed by Immanuel Kant, emphasizes the importance of reason and universal moral principles in determining the rightness or wrongness of an action. It asserts that moral principles should be based on reason and logic, and that they should be applicable to all rational beings.

Utilitarianism, particularly as propounded by Jeremy Bentham and John Stuart Mill, emphasizes the importance of maximizing overall happiness or well-being in determining the morality of an action. It asserts that the right action is the one that produces the greatest happiness for the greatest number of people.

Social Contract Theory, as developed by Thomas Hobbes and John Locke, posits that moral values and principles arise from agreements or contracts among individuals in society. It asserts that these agreements are necessary to maintain social order and cooperation.

Care Ethics, particularly as propounded by Carol Gilligan, emphasizes the importance of empathy, compassion, and care in moral decision-making. It asserts that moral values and principles should be based on the concern for the well-being of others and the maintenance of caring relationships.

Feminist Ethics focuses on the exploration of how gender and power dynamics influence moral values, principles, and decision-making. It examines the ways in which gender roles, stereotypes, and social structures shape our understanding of morality and ethics.