The Tao of Victory by Sun Tzu

One who knows when he can fight, and when he cannot fight,
will be victorious.

One who recognizes how to employ large and small numbers
will be victorious.

One whose upper and lower ranks have the same desires
will be victorious.

One who, fully prepared, awaits the unprepared
will be victorious.

One whose general is capable and
not interfered with by the ruler
will be victorious.

These five are the Way to know victory.
 ---- ---- ----
Thus it is said that one who knows the enemy and knows himself
will not be endangered in a hundred engagements.

One who does not know the enemy but knows himself
will sometimes be victorious and sometimes meet with defeat.

One who knows neither the enemy nor himself
will invariably be defeated in every engagement.

from The Art of War, by Sun Tzu.
6th Century B.C.
the end of Chapter 3: Planning Offensives
Trans. Ralph D. Sawyer.

Illustration below: French planning map for Breisach (anonymous, 1743)
Garwood & Voigt Books and Fine Prints/ War of Austrian Succession--