Declaratio Ferdinandei

“ Fiat iustitia, et pereat mundus” is a Latin phrase. It means: “Let there be justice, though the world perish.”
It was the motto of Ferdinand I, Holy Roman Emperor[1][2][3], probably originating from Philipp Melanchthon's 1521 book Loci communes, and it characterizes an attitude, which wants to provide justice at any price. It is actually about half a century older than its first documented use in English literature.

http://en.wikipedia.org/wiki/Ferdinand_I,_Holy_Roman_Emperor

http://en.wikipedia.org/wiki/Declaratio_Ferdinandei