The idea that religious liberty is the generating principle of civil, and that civil liberty is the necessary condition of religious, was a discovery reserved for the seventeenth century. Many years before the names of Milton and Taylor, of Baxter and Locke were made illustrious by their partial condemnation of intolerance, there were men among the Independent congregations who grasped with vigour and sincerity the principle that it is only by abridging the authority of States that the liberty of Churches can be assured. That great political idea, sanctifying freedom and consecrating it to God, teaching men to treasure the liberties of others as their own, and to defend them for the love of justice and charity more than as a claim of right, has been the soul of what is great and good in the progress of the last two hundred years. The cause of religion, even under the unregenerate influence of worldly passion, had as much to do as any clear notions of policy in making this country the foremost of the free. It had been the deepest current in the movement of 1641, and it remained the strongest motive that survived the reaction of 1660. The greatest writers of the Whig party, Burke and Macaulay, constantly represented the statesmen of the Revolution as the legitimate ancestors of modern liberty. It is humiliating to trace a political lineage to Algernon Sidney, who was the paid agent of the French king; to Lord Russell, who opposed religious toleration at least as much as absolute monarchy; to Shaftesbury, who dipped his hands in the innocent blood shed by the perjury of Titus Oates; to Halifax, who insisted that the plot must be supported even if untrue; to Marlborough, who sent his comrades to perish on an expedition which he had betrayed to the French; to Locke, whose notion of liberty involves nothing more spiritual than the security of property, and is consistent with slavery and persecution; or even to Addison, who conceived that the right of voting taxes belonged to no country but his own. Defoe affirms that from the time of Charles II. to that of George I. he never knew a politician who truly held the faith of either party; and the perversity of the statesmen who led the assault against the later Stuarts threw back the cause of progress for a century.