Mankind are in the end always governed by superiority of intellectual faculties, and none are more sensible of this than the military profession. When, on my return from Italy, I assumed the dress of the Institute, and associated with men of science, I knew what I was doing: I was sure of not being misunderstood by the lowest drummer boy in the army.
Valor is a gift. Those having it never know for sure whether they have it till the test comes. And those having it in one test never know for sure if they will have it when the next test comes.
A commander-in-chief cannot take as an excuse for his mistakes in warfare an order given by his sovereign or his minister when the person giving the order is absent from the field of operations and is imperfectly aware or wholly unaware of the latest state of affairs. It follows that any commander-in-chief who undertakes to carry out a plan which he considers defective is at fault; he must put forward his reasons, insist on the plan being changed, and finally tender his resignation rather than be the instrument of his army's downfall.
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.
The basic principle that we must follow in directing the armies of the Republic is this: that they must feed themselves on war at the expense of the enemy territory.