Gustav Hasford said this quote
“ I tell the squad a joke: Stop me if you're heard this. There was a Marine of nuts and bolts, half robot--weird but true--whose every move was cut from pain as though from stone. His stoney little hide had been crushed and broken. But he just laughed and said, 'I've been crushed and broken before.' And sure enough, he had the heart of a bear. His heart functioned for weeks after it had been diagnosed by doctors. His heart weighed half a pound. His heart pumped seven hundred thousand gallons of warm blood through one hundred thousand miles of veins, working hard--hard enough in twelve hours to lift one sixty-five ton boxcar one foot off the deck. He said. The world would not waste the heart of a bear, he said. On his clean blue pajamas many medals hung. He was a walking word of history, in the shop for a few repairs. He took it on the chin and was good. One night in Japan his life came out of his body--black--like a question mark. If you can keep your head while others are losing theirs perhaps you have misjudged the situation. Stop me if you've heard this... ”