To secure fairly uniform efficiency in the various corps, and also as a means of unifying Italy, Piedmontese, Umbrians and Neapolitans are mixed in the same corps and sleep in the same barrack room.
He was quite aware that the industrial wealth of the great Flemish communes was financially the mainstay of his power, but their very prosperity made them the chief obstacle to his schemes of unifying into a solid dominion the loose aggregate of states over which he was the ruler.
This argument was tacitly accepted or explicitly avowed by almost every writer on the theory of geography, and Carl Ritter distinctly recognized and adopted it as the unifying principle of his system.
A strong writer and thinker, his spirit was essentially unifying and sympathetic, in an age when these qualities won little sympathy.
The evolutionary theory, more than hinted at in Kant's " Physical Geography," has, since the writings of Charles Darwin, become the unifying principle in geography.