"Unity of command is essential to the..." - Quote by Napoleon Bonaparte
Unity of command is essential to the economy of time. Warfare in the field was like a siege: by directing all one's force to a single point a breach might be made, and the equilibrium of opposition destroyed.
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“Every beggar shall be arrested. But to arrest a beggar merely in order to put him in jail would be barbarous and absurd. He should be arrested for the sole purpose of teaching him how to earn a living by his work.”
“I wish I could take a raincheck on June 18.1815”
“Never interfere with an enemy in the process of destroying himself.”
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“The keys of a fortress are always well worth the retirement of the garrison when it is resolved to yield only on those conditions. On this principle it is always wiser to grant an honorable capitulation to a garrison which has made a vigorous resistance than to risk an assault.”
“A strategic plan based on the over-all situation of both belligerents is ... more stable, but it too is applicable only in a given strategic stage and has to be changed when the war moves towards a new stage. ... [Conversely, tactical plans may] ... have to be changed several times a day.”
“Many companies forget what it means to make great products. After initial success, sales and marketing people take over and the product people eventually make their way out.”