R.S. McNamara's eleven lessons of war
Empathize with your enemy
Rationality will not save us
There's something beyond one's self
Maximize efficiency
Proportionality should be a guideline in war
Get the data
Belief and seeing are often both wrong
Be prepared to reexamine your reasoning
In order to do good, you may have to engage in evil
Never say never
You can't change human nature