Wherefore it is needful that the man who has to contend against all should be acquainted with the engines and the arts of all-that he should be at once archer and slinger, commandant and officer, general and private soldier, foot-soldier and horseman, skilled in sea-fight and in siege; for unless he knows every trick and turn of war, the devil is well able, if only a single door be left open, to get in his fierce bands and carry off the sheep."(
ceterum ut semel recepisse veniam habuerit, ita per omnis provincias effgie numinum sacrari ambitiosum, superbum; et vanescet Augusti honor si promiscis adulationibus vulgatur.vatican.va vatican.va