Policy
A policy is a deliberate system of principles to guide decisions and achieve rational outcomes. A policy is a statement of intent, and is implemented as a procedure or protocol. Policies are generally adopted by a governance body within an organization. Policies can assist in both subjective and objective decision making. Policies to assist in subjective decision making usually assist senior management with decisions that must be based on the relative merits of a number of factors, and as a result are often hard to test objectively, e.g. work-life balance policy. In contrast policies to assist in objective decision making are usually operational in nature and can be objectively tested, e.g. password policy.
Politics
Politics (from Greek: πολιτικά, translit. Politiká, meaning "affairs of the cities") is the process of making decisions that apply to members of a group.
Social
Living organisms including humans are social when they live collectively in interacting populations, whether they are aware of it, and whether the interaction is voluntary or involuntary.
Sociology
Sociology is the scientific study of society, including patterns of social relationships, social interaction, and culture. It is a social science that uses various methods of empirical investigation and critical analysis to develop a body of knowledge about social order, acceptance, and change or social evolution. Many sociologists aim to conduct research that may be applied directly to social policy and welfare, while others focus primarily on refining the theoretical understanding of social processes. Subject matter ranges from the micro-sociology level of individual agency and interaction to the macro level of systems and the social structure.
Policy
Don't throw a monkey-wrench into the machinery.
Philander Chase Johnson, Everybody's Magazine (May 1920), p. 36.
Sociology
Myth does not set out to give lessons in natural science any more than in morals or sociology.
François-Bernard Mâche (1983, 1992). Music, Myth and Nature, or The Dolphins of Arion (Musique, mythe, nature, ou les Dauphins d'Arion, trans. Susan Delaney). Harwood Academic Publishers. ISBN 3718653214
Politics
Aristocracy and exclusiveness tend to final overthrow, in language as in politics.
William Dwight Whitney, Language and the Study of Language: Twelve Lectures on the Principles of Linguistic Science (1868), p. 150.