Sergeant Major Daly's precise quotation is Daly is said to have been "Come on, you sons of bitches! Do you want to live forever?" to the men in his company prior to charging the Germans during the Battle of Belleau Wood in World War I; Daly claimed he said, "For Christ's sake mencome on! Do you want to live forever?"
By way of motivational mottoes, I prefer my old outfit's, both official and unofficial: Where my horse has trod, grass will never again grow.
That was always a lot of fun for tankers.
For the archives:
http://westernrifleshooters.wordpress.com/2013/01/18/more-battlespace-prep-from-west-point/