He will win who knows when to fight and when not to fight.
There has never been a protracted war from which a country has benefitted.
Without local guides, your enemy employs the land as a weapon against you.
Weak leadership can wreck the soundest strategy; forceful execution of even a poor plan can often bring victory.
If words of command are not clear and distinct, if orders are not thoroughly understood, the general is to blame. But if his orders are clear, and the soldiers nevertheless disobey, then it is the fault of their officers.
In the midst of difficulties we are always ready to seize an advantage, we may extricate ourselves from misfortune.