In 1848, the two co-authored The Communist Manifesto as a platform for a group they belonged to called the Communist League. The Manifesto envisions history as a class struggle between oppressed workers and oppressive owners, calling for a workers’ revolution so property, family and nation-states can be abolished and a proletarian Utopia established. The Evil Empire of the Soviet Union put the Manifesto into practice.
The sign that a person on the right is totally full of shit is that they give the Communist Manifesto much more weight than it really deserves, like that part about "The Evil Empire" putting it into practice. I say, what the hell are you going to put into practice? Have these people actually read the Communist Manifesto? It lists ten immediate demands, which are things like free universal education, a tax on inheritance, and other really small demands, since it was an actual platform for a political party, and not a complete call for Revolution. The real importance of the Manifesto comes in the introduction to those several demands, which is a really broad historical analysis of history.
To say that "The Evil Empire" put the Manifesto into practice is just really not on track. I think that the Soviet Union probably owed more to things written by Lenin legitimating Party dictatorship than to the damn Manifesto...
Marx makes another appearance in Human Events' top ten with volume one of Capital.
John Dewey makes an appearance with "Democracy and Education"
Auguste Comte, mentioned just a day ago, makes his appearance with his "Introduction to the Positive Philosophy".
Nietzsche makes an appearance with "Beyond Good and Evil", and John Stuart Mill gets honorable mention for his insidious book "On Liberty".
Totally taking me by surprise because of its complete non-sequiter nature, Antonio Gramsci's book "The Prison Notebooks" wins honorable mention. Maybe it's because they don't understand them and are feeling some sort of inferiority complex.
"Silent Spring" by Rachel Carson also gets honorable mention. I guess poisoning the earth with pesticides is some sort of liberal plot, right guys?