The negotiations were simultaneously cerebral and physical, abstract and personal, something like a combination of chess and mountain climbing.
~ Richard Holbrooke
Know something about something. Don't just present your wonderful self to the world. Constantly amass knowledge and offer it around.
World War I was not inevitable, as many historians say. It could have been avoided, and it was a diplomatically botched negotiation.
A peace deal requires agreements, and you don't make agreements with your friends, you make agreements with your enemies.