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" From the 1960s to the present day , Chorin has led and inspired applied mathematicians everywhere to tackle the most difficult real-world problems and to make full use of the combined power of advanced computers and sophisticated mathematical analysis . But the history of the voting privilege in the twentieth century shows that it takes the combined power of mass movements , economic pressures , and the Federal Government with its military force to give even a relative assurance that this requirement of justice will be realized.3 It seems , therefore , that when we move from the perspective of love to concrete issues of social strategy and political power , justice is accomplished by a confluence of historical forces and humane considerations which indeed may be enforced by love , but which must have other sources . The computer scientists and engineers have been using the " nano-regatta " computer , an IBM system approximately equivalent to the combined power of 128 personal computers . But as the prism divides the rays , revealing the brilliant colors of the light , so does individual sovereignty reveal the beauty of representative government , and as the burning-glass shows the power of concentrating the rays , so does the combined power of the multitude reveal the beauty of united effort to carry a grand measure . The Guaran are best known for their connection to the early Jesuit missions of Paraguay , the most notable mission foundation ever established in America , and for their later heroic resistance - - as the State of Paraguay , against the combined powers of Brazil , Argentina , and Uruguay - - until practically all their able-bodied men had been exterminated . The combined power of MDG 2 with MDG 3 needs to demand substantially increased resources from governments ( donor and otherwise ) , international financial institutions , international NGOs and other donors .