proclaim the necessity of the new Canadian republic. "Not only do I consider the possession as worth no breach of the Constitution ... but in a national view I really hold those colonies to {283} be worth nothing. I am well assured that we shall find them very little worth the cost they have entailed on us, in men, in money, and in injuries to our trade; nay, that their separation will be even now a positive gain, so it be effected on friendly terms, and succeeded by an amicable intercourse."[55] Separation was indubitably a dogma of philosophic radicalism; and yet it was not so much the influence of this metaphysical and doctrinaire belief which moved Whig opinion. It was rather the plain business-like and matter-of-fact radicalism of the economist statesmen, led by Bright and Cobden. Of the two forces represented by Peel and by Cobden, which completed the formation of a modern Liberal party, the latter was on the whole the stronger; and Bright and Cobden took the views of their Radical predecessors, and out of airy and ineffectual longings created solid political facts. "I cannot disguise from myself," wrote Grey to Elgin in 1850, "that opinion in this country is tending more and more to the rejection of any burden whatever, on account of our colonies"; and the reason for the tendency was certainly the purely economic views to which {284} Cobden was accustoming Britain, and the cogency of the arguments by which he was driving amateur politicians from their earlier indefensible positions. That trade was all-important, and that the operations of trade disregarded the irrelevant facts of nationality and race; that no one community could interfere in the social and political life of another without disaster to both; that the defence of colonies was not only dangerous to peace as provoking suspicious neighbours, but needless expense to the mother country; in short that _laissez-faire_ was the dominating principle in politics, and that _laissez-faire_ shattered the earlier dreams of imperial supremacy and colonial dependency--these were the views introduced by Cobden and Bright into a newly awakened and imperfectly educated England; and they played just such havoc with earlier political ideas, as Darwin and evolution did with pre-existing theological orthodoxy.[56]