No bastard ever won a war by dying for his country. He won it by making the other poor dumb bastard die for his country.
If everybody's thinking the same thing, then nobody's thinking.
Most battles are won before they are ever fought.
When everyone agrees, someone is not thinking.
Prepare for the unknown by studying how others in the past have coped with the unforeseeable and the unpredictable.
The reason there are so many tree-lined boulevards in Paris is so the German army can march in the shade.