Whoever does great things with small means has successfully reached the goal.

To discover how much of our resources must be mobilized for war, we must first examine our political aim and that of the enemy. We must gauge the strength and situation of the opposite state. We must gauge the character and abilities of its government and people and do the same in regard to our own. Finally, we must evaluate the political sympathies of other states and the effect the war may have on them.

Principles and rules are intended to provide a thinking man with a frame of reference.

If we do not learn to regard a war, and the separate campaigns of which it is composed, as a chain of linked engagements each leading to the next, but instead succumb to the idea that the capture of certain geographical points or the seizure of undefended provinces are of value in themselves, we are liable to regard them as windfall profits.

Modern wars are seldom fought without hatred between nations; this serves more or less as a substitute for hatred between individuals.

...as man under pressure tends to give in to physical and intellectual weakness, only great strength of will can lead to the objective.

The best strategy is always to be very strong.