The quote is from Brigadier General John Buford as he directed his delaying action before Gettysburg. With his bold and brilliant action, he shaped the course of that pivotal three day battle. This video describes the events of that day very well. One minor correction is that Buford’s cavalrymen had few if any Spencer carbines at Gettysburg. The most common carbine among his regiments was the Sharps breechloading carbine firing paper cartridges.