“He knows that law is the adhesive force in the cement of society, creating order out of chaos and coherence in place of anarchy. He knows that for one man to defy a law or court order he does not like is to invite others to defy those which they do not like, leading to a breakdown of all justice and all order. He knows, too, that every fellowman is entitled to be regarded with decency and treated with dignity. Any educated citizen who seeks to subvert the law, to suppress freedom, or to subject other human beings to acts that are less than human, degrades his heritage, ignores his learning, and betrays his obligation.”

Life-Line (p. 16)
Short fiction, The Past Through Tomorrow (1967)

The Children of Men (1992)

Source: The Wealth of Nations (1776), Book IV, Chapter IX, p. 749.
Context: Every system which endeavours, either, by extraordinary encouragements, to draw towards a particular species of industry a greater share of the capital of the society than what would naturally go to it; or, by extraordinary restraints, to force from a particular species of industry some share of the capital which would otherwise be employed in it; is in reality subversive of the great purpose which it means to promote. It retards, instead of accelerating, the progress of the society towards real wealth and greatness; and diminishes, instead of increasing, the real value of the annual produce of its land and labour.
All systems either of preference or of restraint, therefore, being thus completely taken away, the obvious and simple system of natural liberty establishes itself of its own accord. Every man, as long as he does not violate the laws of justice, is left perfectly free to pursue his own interest his own way, and to bring both his industry and capital into competition with those of any other man, or order of men. The sovereign is completely discharged from a duty, in the attempting to perform which he must always be exposed to innumerable delusions, and for the proper performance of which no human wisdom or knowledge could ever be sufficient; the duty of superintending the industry of private people, and of directing it towards the employments most suitable to the interest of the society. According to the system of natural liberty, the sovereign has only three duties to attend to; three duties of great importance, indeed, but plain and intelligible to common understandings: first, the duty of protecting the society from the violence and invasion of other independent societies; secondly, the duty of protecting, as far as possible, every member of the society from the injustice or oppression of every other member of it, or the duty of establishing an exact administration of justice; and, thirdly, the duty of erecting and maintaining certain public works and certain public institutions, which it can never be for the interest of any individual, or small number of individuals, to erect and maintain; because the profit could never repay the expence to any individual, or small number of individuals, though it may frequently do much more than repay it to a great society.
The proper performance of those several duties of the sovereign necessarily supposes a certain expence; and this expence again necessarily requires a certain revenue to support it.

Act III, scene i.
The Conspiracy and Tragedy of Charles, Duke of Byron (1608)

Source: What is Property? (1840), Ch. V, Part 2; this might be the ultimate inspiration of the later slogan coined in 1848 by Anselme Bellegarrigue (and often attributed to Proudhon): "Anarchy is order, government is civil war."

The Pageant of Life (1964), On Planning for a Better World

Book I, section 42; Translation by C.D. Yonge)
De Legibus (On the Laws)
Context: For there is but one essential justice which cements society, and one law which establishes this justice. This law is right reason, which is the true rule of all commandments and prohibitions. Whoever neglects this law, whether written or unwritten, is necessarily unjust and wicked.

By J.R. Jagrat
Speech By Mr. S. G. Page, Government Pleader, High Court, Bombay, Made OnMonday, 28 September, 1992

Source: Quotes from Roses in The desert, P. 31.