Socialism: You have two cows. The government takes one of them and gives it to your neighbor.
Communism: You have two cows. The government takes them both and provides you with milk.
Nazism: You have two cows. The government shoots you and takes the cows.
Capitalism: You have two cows. You sell one and buy a bull.
Do you remember the above? I remember it very well; it was a famous political sarcasm that was widely circulated in 1990s (at my time) about the different political systems. It’s has an older origin though. Believe it or not, these jokes affected my political ‘evolutionist’ thinking then.