The document discusses deontological ethics, a non-consequentialist theory that focuses on the morality of actions based on duty rather than outcomes. It details Immanuel Kant's three laws, known as the categorical imperative, which guide ethical decision-making by emphasizing the universality of moral actions and the treatment of humanity as an end. The principles of deontology provide a framework for assessing the moral value of actions through a focus on duty and rationality.