The late, great leader Major Duncan, USMC (Ret.) recommended this video, so I am passing it along with him in mind; I would also like to quote him from a 2004 speech: "You must accept the fact you're not here to get, you're here to give. You have the responsibility to live up to what your forefathers set. You have joined a group that's more than a group, it's a family. Remember, you're here to do things with no expectations of rewards. Look for the betterment of your team." His words continue to educate and inspire.

(from leatherneck.com)