By means of self-instruction and the acquisition of ideas, man finally acquires the idea of SCIENCE,--that is, of a system of knowledge in harmony with the reality of things, and inferred from observation. He searches for the science, or the system, of inanimate bodies,--the system of organic bodies, the system of the human mind, and the system of the universe: why should he not also search for the system of society? But, having reached this height, he comprehends that political truth, or the science of politics, exists quite independently of the will of sovereigns, the opinion of majorities, and popular beliefs,--that kings, ministers, magistrates, and nations, as wills, have no connection with the science, and are worthy of no consideration. He comprehends, at the same time, that, if man is born a sociable being, the authority of his father over him ceases on the day when, his mind being formed and his education finished, he becomes the associate of his father; that his true chief and his king is the demonstrated truth; that politics is a science, not a stratagem; and that the function of the legislator is reduced, in the last analysis, to the methodical search for truth. Thus, in a given society, the authority of man over man is inversely proportional to the stage of intellectual development which that society has reached; and the probable duration of that authority can be calculated from the more or less general desire for a true government,--that is, for a scientific government. And just as the right of force and the right of artifice retreat before the steady advance of justice, and must finally be extinguished in equality, so the sovereignty of the will yields to the sovereignty of the reason, and must at last be lost in scientific socialism. Property and royalty have been crumbling to pieces ever since the world began. As man seeks justice in equality, so society seeks order in anarchy.