Woe to the leader whose arguments at the end of a war are not as plausible as they were at the beginning. - Otto von Bismarck

Only a country's most vital interests justify its embarking on war. ... Aye, I made the war of 1866, fulfilling my harsh duty with a heavy heart, because without it the nation would have bogged down politically, soon to fall prey to avaricious neighbors; and if we stood in the same place where then we stood, I should resolutely make war again. Never, you may be sure, shall I counsel His Majesty to wage war unless the innermost interests of the fatherland request it.

I leave undecided the question whether complete mutual freedom of international commerce, such as is contemplated by the theory of Free Trade, would not serve the interests of Germany. But as long as most of the countries with which our trade is carried on surround themselves with customs barriers...it does not seem to me justifiable, or to the economic interest of the nation, that we should allow ourselves to be restricted in the satisfaction of our financial wants by the apprehension that German products will thereby be slightly preferred to foreign ones. ... The minority of the population, which does not produce at all, but exclusively consumes, will apparently be injured by a customs system favouring the entire national production. Yet if by means of such a system the aggregate sum of the values produced in the country increase, and thus the national wealth be on the whole enhanced, the non-producing parts of the population...will eventually be benefited.

Lord takes care of babes, fools, and the United States.