The Fog of War

Lesson #1: Empathize with your enemy
Lesson #2: Rationality will not save us
Lesson #3: There's something beyond one's self
Lesson #4: Maximize efficiency
Lesson #5: Proportionality should be a guideline in war
Lesson #6: Get the data
Lesson #7: Belief and seeing are both often wrong
Lesson #8: Be prepared to reexamine your reasoning
Lesson #9: In order to do good, you may have to engage in evil
Lesson #10: Never say never
Lesson #11: You can't change human nature

-- Robert Strange McNamara, Former Secretary of Defense and self-professed war criminal.