You have two cows.
If the government agent takes one and gives it to your neighbor, that is Socialism.
If the government agent takes both, and promises to give you milk, that is Communism.
If the government takes both and promises to sell you milk, that is Fascism.
If the government shoots you and takes both cows, that is Naziism.
If you shoot the government agent, that is Anarchism.
If you sell one cow and buy a bull, that is Capitalism.
We need just enough Anarchism so that Capitalism is free to do its good work.