The Doctrine Of Fascism by Benito Mussolini is an impressive work propaganda wise - If we are talking about theory we could discuss Platonism/Plato and people from a long time ago who had views that were close to what we consider fascism. I'm just saying Mussolini shaped the history of Europe in the XX century - All other fascists came after him. This was terrible but good because we learned a lot on how valuable freedom can be
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you