The Real 7 Deadly Sins - Cultivated Ignorance is the worst of all. There is no excuse in this day and age for people to work at being stupid and uninformed. And I mean devoid of ability to think independently, to grasp real facts and not that swill that passes as entertainment from Fox. You are after all entitled to your own opinions, but not your own facts.
Martin Luther (10 November 1483 – 18 February 1546) was a German monk, priest, professor of theology and iconic figure of the Protestant Reformation. He strongly disputed the claim that freedom from God's punishment for sin could be purchased with money. He confronted indulgence salesman Johann Tetzel with his Ninety-Five Theses in 1517. His theology challenged the authority and office of the Pope by teaching that the Bible is the only source of divinely revealed knowledge from God.