BENJAMIN DISRAELI--TWICE PRIME minister of Great Britain, romantic novelist, inventor of modern conservatism--was a neocon in the plain sense of the word, a "new conservative" who began his career on the left. Conservative thinking dates to the dawn of organized society, but modern conservatism--a mass movement, a philosophy not for aristocrats and the rich but for everybody--was Disraeli's creation. That modern conservatism should have been invented by a 19th-century neocon is thought provoking. More surprising:His redefinition of conservatism is still fresh, and his political philosophy has never been more apt.Conservatism is the most powerful and electric force in the American...