“ It is better to beat the enemy through want, surprises and care for difficult places (i.e. through manoeuvre) than by a battle in the open field—maxims that-have guided the leaders of professional armies in all countries and at all times, as witness the Chinese generals Sun and Wu (see E. F. Calthrop, The Book of War, London, 1908) . ”

“ When the French Revolution arid the "nation in arms " came into history, we hear little more of Vegetius. Some of the maxims may be mentioned here as illustrating the principles of a war for limited political objects (see Army) with which he deals. " All that is advantageous to the enemy is disadvantageous to you, and all that is useful to you, damages the enemy"; " No man is to be employed in the field who is not trained and tested in discipline" ”