“We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.”

“As many people have chronicled, the decision to fight in Vietnam was a years-long accretion of step-by-step choices, each of which could be rationalized at the time. Invading Iraq was an unforced, unnecessary decision to risk everything on a 'war of choice' whose costs we are still paying.”