And now for something completely random ...

Credit for discovery goes to Nar.
Deuteronomy 7:2 reads:- And when the LORD thy God shall deliver them before thee; thou shalt smite them, [and] utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them:' (from the King James' Bible). The names at each of the sides are all names of significant figures in the Protestant Reformation. 'Orate pro nobis' is Latin for 'pray for us' and appears in the Roman Catholic Litany of the Saints. I was too lazy to try and find out more about the Greek inscription at the top, but a description of Heraclitus and his philosophy might help a little in deciphering its place in the randomity.
The whole thing probably has something to do with science, religion and morality. (See, for instance, how all those relativity equations are leading to the image of a mushroom cloud at the centre?)