Action in war is like movement in a resistant element. Just as the simplest and most natural of movements, walking, cannot easily be performed in water, so in war it is difficult for normal efforts to achieve even moderate results.
...in war, the advantages and disadvantages of a single action could only be determined by the final balance.
It is even better to act quickly and err than to hesitate until the time of action is past.
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 role of determination is to limit the agonies of doubt and the perils of hesitation when the motives for action are inadequate.