[Prospero]

The Law by Frédéric Bastiat for immunity before exposure to Marx or his friends or followers.

The Genius of Christianity or his posthumous memoirs (Mémoires d'Outre-Tombe) by Chateaubriand, and

The True Believer by Eric Hoffer.

So many others, though... I've heard the most dedicated and 'healthy' readers can read

[exDemMom]

Thank you. I’ve known of true believers, but I never knew there was an entire book dedicated to exploring the phenomenon/psychology of them.

I will have to read the book. Right now, I sense that the left is becoming increasingly ugly, and that they are a short step away from descending into bloodshed, with many deaths. We must fight them, but (arguably even more important) we must understand them.