To do what you imply would require nothing short of....

“ To do what you imply would require nothing short of divine intervention. you must change man, not systems. Can you and our vapouring friends of the Literary Chamber of Rennes, or any other learned society of France, devise a system of government that has never yet been tried? Surely not. And can we say of any system tried that it proved other than failure in the end? My dear Philippe, the future is to be read with certainty only in the past. Ad actu ad posse valet consecutio. Man never changes. He is always greedy, always acquisitive, always vile. I am speaking of Man in the bulk. ”

Rafael Sabatini

From : Scaramouche