[...] two qualities are indispensable [...] The first is figuratively expressed by the French phrase w:coup d'oeil. The other is resolution. - Carl von Clausewitz

A prince or general can best demonstrate his genius by managing a campaign exactly to suit his objectives and his resources, doing neither too much nor too little.

No one starts a war — or rather, no one in his sense ought to do so — without first being clear in his mind what he intends to achieve by that war and how he intends to conduct it.

The commander's talents are given greatest scope in rough hilly country. Mountains allow him too little real command over his scattered units and he is unable to control them all; in open country, control is a simple matter and does not test his ability to the fullest.