Darwin's Dangerous Idea

And previous sectarian groups might have said, well, we think you got the wrong take on the Bible or you have the wrong take on tradition, but Luther's Reformation was more, the theoretical underpinning of the thing was a bit more radical.

That's why Alistair McGrath, the Protestant historian, referred to the doctrine of Sola Scriptura as Protestantism's Dangerous Idea, as with a kind of riff on Richard Dawkins' book, Darwin's Dangerous Idea, you know, it was Protestantism's Dangerous Idea.

And Roelig Zwingli in 1525 wrote a book called On the Clarity and Certainty of the Word of God.

And Zwingli's position in that book was that, hey, there's division in Catholicism because they don't have agreement on the sources of religion.