The most important six inches on the battlefield is between your ears.

You are part of the world's most feared and trusted force. Engage your brain before you engage your weapon.

Find the enemy that wants to end this experiment (in American democracy) and kill every one of them until they're so sick of the killing that they leave us and our freedoms intact.

PowerPoint makes us stupid.

I don't lose any sleep at night over the potential for failure. I cannot even spell the word.

Demonstrate to the world there is "No Better Friend, No Worse Enemy" than a U.S. Marine.

If in order to kill the enemy you have to kill an innocent, don't take the shot. Don't create more enemies than you take out by some immoral act.

No war is over until the enemy says it's over. We may think it over, we may declare it over, but in fact, the enemy gets a vote.

There are hunters and there are victims. By your discipline...you will decide if you are a hunter or a victim.

You've been told that you're broken. That you're damaged goods ... there is also Post-Traumatic Growth. You come back from war stronger and more sure of who you are.

You can overcome wrong technology. Your people have the initiative, they see the problem, no big deal ... you can't overcome bad culture. You've gotta change whoever is in charge.

The nonchalance irritated her more because it was not assumed.

An impossibility does not disturb us until its accomplishment shows what fools we were.

Those who believe that they are exclusively in the right are generally those who achieve something.

I am just convinced that people want to see people on TV who are more like themselves.

Maybe the fear is that we are less than we think we are, when the actuality of it is that we are much much more.

Even if I'm playing a superhero, it has to be steeped in reality.

Logic cannot comprehend love; so much the worse for logic.

The thoughts which the word "God" suggests to the human mind are susceptible of as many variations as human minds themselves.

Writing is something that I practice at every day to get better at.

The chief fruit of the First World War was the Russian Revolution and the rise of Communism as a national power.