Chesty Puller said this quote

My definition, the definition that I've always believed in, is that esprit de corps means love for one's own military legion - in my case, the United States Marine Corps. It means more than self-preservation, religion, or patriotism. I've also learned that this loyalty to one's corps travels both ways: up and down.

~ Chesty Puller

In the Confederate Army, an officer was judged by stark courage alone, and this made it possible for the Confederacy to live four years.

~ Chesty Puller

If you want to get the most out of your men, give them a break! Don't make them work completely in the dark. If you do, they won't do a bit more than they have to. But if they comprehend, they'll work like mad.

~ Chesty Puller