Rousseau's "Social Contract" (Contrat Social) is the most influential treatise on politics written in modern times. As its title implies, the work is an endeavour to place all government on the consent, direct or implied, of the governed; how, through the rearrangement of society, man may, in a sense, return to the law of nature. "Man is born free, and yet is everywhere in chains." Logically, the "Social Contract" is full of gaping flaws. Like its author's other books (see vol. vii, p. 176), it is an outpouring of the heart very imperfectly regulated by a brilliant but eccentric brain. As a political essay it is a tissue of fantastic arguments, based on unreal hypotheses. But it set men's minds on fire; it was the literary inspiration of one of the most tremendous events in history, and those who would comprehend the French Revolution can unravel many of its perplexities by studying the "Social Contract." After its publication Rousseau had to fly to England, where he showed marked symptoms of insanity. _The Terms of the Contract_ My object is to discover whether, in civil polity, there is any legitimate and definite canon of government, taking men as they are, and laws as they might be. In this enquiry I shall uniformly try to reconcile that which is permitted by right with that which is prescribed by interest so as to avoid the clash of justice with utility. Man is born free, and yet is everywhere in fetters. He is governed, obliged to obey laws. What is it that legitimises the subjection of men to government? I think I can solve the problem. It is not merely a matter of force; force is only the power of the strongest, and must yield when a greater strength arises; there is here no question of right, but simply of might. But social order is a sacred right that serves as a base for all others. This right, however, does not arise from nature; it is founded, therefore, upon conventions. It is necessary, then, to know what these conventions are.