The backbone of surprise is fusing speed with secrecy.
Lastly, the great uncertainty of all data in War is a peculiar difficulty, because all action must, to a certain extent, be planned in a mere twilight, which in addition not infrequently - like the effect of a fog or moonshine - gives to things exagg
All action takes place, so to speak, in a kind of twilight, which like a fog or moonlight, often tends to make things seem grotesque and larger than they really are.
The political object is the goal, war is the means of reaching it, and the means can never be considered in isolation form their purposes.
Many intelligence reports in war are contradictory; even more are false, and most are uncertain.
War is nothing more than the continuation of politics by other means.
Everything in war is simple, but the simplest thing is difficult. The difficulties accumulate and end by producing a kind of friction that is inconceivable unless one has experienced war.
The difficulty of accurate recognition constitutes one of the most serious sources of friction in war... War has a way of masking the stage with scenery crudely daubed with fearsome apparitions.
War is not merely a political act but a real political instrument, a continuation of political intercourse, a carrying out of the same by other means.
War is not an exercise of the will directed at an inanimate matter.
War is the province of danger.