1. If we examine the main works of political philosophy in past centuries, they can be divided roughly into two categories. Political philosophy, then, is the study of the theories behind politics. … Political philosophy must use distinctively political concepts, such as power, and its normative relative, legitimation.” 2 Ho w should political philosophy take up Major Political Writings. According to this view point ,political science inquires into what individuals 'do' in a political situation while political philosophy tries to determine what they 'ought to do' to achieve … The central problem of political philosophy is how to deploy or limit public power so as to maintain the survival and enhance the quality of human life. Political philosophy, branch of philosophy that is concerned, at the most abstract level, with the concepts and arguments involved in political opinion. Political science deals with ‘real' while political philosophy deals with the 'ideal' . Hobbes wrote several versions of his political philosophy, including The Elements of Law, Natural and Politic (also under the titles Human Nature and De Corpore Politico) published in 1650, De Cive (1642) published in English as Philosophical Rudiments Concerning Government and Society in 1651, the English Leviathan published in 1651, and its Latin revision in 1668. The nature of politics and philosophy had always been integrated from the founding scholars of social science like Aristotle and Plato as in consideration. Mostly, however, they have been used to justify or legitimate the existence of contemporary political structures by appealing to "rationality," "reason," or, among others, "natural … For Williams, by contrast, “political philosophy is not just applied moral philosophy, which is what in our culture it is often taken to be. These theories may be used to gain power or to justify its existence. On the one hand there are those produced by philosophers elaborating general philosophical systems, whose political philosophy flows out …