Of all tyrannies of unreason in the modern world, one holds a supremely evil preeminence. It covered the period from the middle of the sixteenth century to the middle of the seventeenth, and throughout those hundred years was waged a war of hatreds,—racial, religious, national, and personal;—of ambitions, ecclesiastical and civil;—of aspirations, patriotic and selfish;—of efforts, noble and vile. During all those weary generations Europe became one broad battlefield,—drenched in human blood and lighted from innumerable scaffolds. In this confused struggle great men appeared—heroes and martyrs, ruffians and scoundrels: all was anarchic. The dominant international gospel was that of Machiavelli.
p. 55 - Seven Great Statesmen in the Warfare of Humanity with Unreason (1915)