That is to say, epic poetry has been invented many times and independently; but, as the needs which prompted the invention have been broadly similar, so the invention itself has been.
Einstein said, if everything exists as a substance of qualities, and qualities exist only in mind, then all is mind.
My submission to you is we're fighting the war on terror not overseas but in our own streets, and we'd be spending vast more fortunes to try to be a defensive country to protect ourselves rather than an offensive country to spread democracy wherever people yearn for it.