J. Christopher Herold said this quote

The right-wing Tories and the conservative Whigs fought Napoleon as the Usurper and the Enemy of the Established Order; the liberal Tories and the radical Whigs fought him as the Betrayer of the Revolution and the Enslaver of Europe; they were all agreed in fighting him, and his notion that their disagreement signified national disunion was mere wishful thinking. All dictators since his time have fallen into the same trap: themselves blind to the values of liberty, they cannot conceive that people who disagree on its meaning can nevertheless unite in upholding their freedoms against patent despotism.