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

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.

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

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.

When you pray as much as you work

(Looking at the tree) Pity we haven't got a bit of rope.

I love making people who already hate me hate me more.

He used to say we all had a compass inside of us and what we needed to do was to find it and to follow it.

I'm a middle child, and I'm pretty diplomatic: the peace-maker.

There is what we desire to do, and what we are able to do. When those two things don't coincide, which path should we pursue to find happiness?

I have the attention span of a mosquito from multitasking and all the things that have affected my poor little brain.

I think "MythBusters" is a step up from special effects because we not only have to make things look like they work, they actually do have to work. It's more challenging and even transcendental.

Round the boles of the pine-wood the ground-laurel creeps, Unkissed of the sunshine, unbaptized of showers, With buds scarcely swelled, which should burst into flowers!

Estimating is what you do when you don't know.