The most important 6 inches on the battlefield is between your ears.
Be polite, be professional, but have a plan to kill everybody you meet.
In this age, I don't care how tactically or operationally brilliant you are: if you cannot create harmony - even vicious harmony - on the battlefield based on trust across service lines, across coalition and national lines, and across civilian/military lines, you need to go home, because your leadership is obsolete.
We know that in tough times, cynicism is just another way to give up, and in the military, we consider cynicism or giving up simply as forms of cowardice.
I believe that many of my young guys lived because I didn't waste their lives because I didn't have the vision in my mind of how to destroy the enemy at least cost to our guys and to the innocents on the battlefields.
No matter how bad any situation, cynicism has no positive impact. Watching the news, you might notice that cynicism and victimhood often seem to go hand-in-hand, but not for veterans.
Some people feel affronted when something they thought to be true doesn't happen. If that's the case, then your sense of risk is much higher, and that leads to risk aversion. You need to be able to be comfortable in uncertainty.
So long as our Corps fields such Marines, America has nothing to fear from tyrants, be they Fascists, Communists or Tyrants with Medieval Ideology. For we serve in a Corps with no institutional confusion about our purpose: To fight! To fight well!