Politics are not a science based on logic; they are the capacity of always choosing at each instant, in constantly changing situations, the least harmful, the most useful.
Otto von BismarckHe obtained from Congress the right to borrow from the people by selling to it the 'bonds' of States ... and the Government and the nation escaped the plots of the foreign financiers. They understood at once, that the United States would escape their grip. The death of Lincoln was resolved upon.
Otto von BismarckDo not expect that once taking advantage of Russia's weakness, you will receive dividends forever. Russian has always come for their money. And when they come - do not rely on an agreement signed by you, you are supposed to justify. They are not worth the paper it is written. Therefore, with the Russian is to play fair, or do not play.
Otto von Bismarck