The document discusses Christian morality and its basic concepts. It defines morality both descriptively as existing codes of conduct in societies, and normatively as universal standards based on reason. Descriptive morality only applies locally while normative morality is universal. Morality examines the object, circumstances, and intentions of human acts, which require will and knowledge, rather than involuntary acts of man. Key norms that govern conduct are eternal, natural, and positive laws, as well as an individual's conscience, which can be correct, false, scrupulous, lax, certain, or doubtful depending on its judgments.