And you know what? Eric is right. Look at history's most notorious Lefist tyrants in the last 100 years--Adolf Hitler, Josef Stalin, Pol Pot, and several others; note that they were all mentally unstable from the paranoia and delusions of power.
But it goes deeper that that. It goes Back to Romans 1: 16-32. I chan't say it any clearer than the Bible.
Sorry for the typos...it's time to get some rest.