Peace is the fixedness of order; by order, I mean an arrangement of things like and unlike giving to each its own place. And as there is no man who would not willingly have joy, so is there no man who would not have peace; since even those who go to war desire nothing more than by war to come to a glorious peace.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: City of God, book 19, ch. 13