And that's all we'll ever know about him.

From The Pragmatics of Patriotism by Robert Heinlein. It was a speech he made at the US Naval Academy (of which he was a graduate) in the 1973 Forrestal Lecture.

What you do have here is a tradition of service. Your most important classroom is Memorial Hall. Your most important lesson is the way you feel inside when you walk up those steps and see that shot-torn flag framed in the arch of the door: 'Don't Give Up the Ship.' If you feel nothing, you don't belong here. But if it gives you goose flesh just to see that old battle flag, then you are going to find that feeling increasing every time you return here over the years... until it reaches a crescendo the day you return and read the list of your own honored dead - classmates, shipmates, friends - read them with grief and pride while you try to keep your tears silent.

The time has come for me to stop. I said that 'Patriotism' is a way of saying 'Women and children first.' And that no one can force a man to feel this way. Instead he must embrace it freely. I want to tell about one such man. He wore no uniform and no one knows his name, or where he came from; all we know is what he did.

In my home town sixty years ago when I was a child, my mother and father used to take me and my brothers and sisters out to Swope Park on Sunday afternoons. It was a wonderful place for kids, with picnic grounds and lakes and a zoo. But a railroad line cut straight through it.

One Sunday afternoon a young married couple were crossing these tracks. She apparently did not watch her step, for she managed to catch her foot in the frog of a switch to a siding and could not pull it free. Her husband stopped to help her. But try as they might they could not get her foot loose. While they were working at it, a tramp showed up, walking the ties. He joined the husband in trying to pull the young woman's foot loose. No luck.

Out of sight around the curve a train whistled. Perhaps there would have been time to run and flag it down, perhaps not. In any case both men went right ahead trying to pull her free... and the train hit them. The wife was killed, the husband was mortally injured and died later, the tramp was killed - and testimony showed that neither man made the slightest effort to save himself. The husband's behavior was heroic... but what we expect of a husband toward his wife: his right, and his proud privilege, to die for his woman. But what of this nameless stranger? Up to the very last second he could have jumped clear. He did not. He was still trying to save this woman he had never seen before in his life, right up to the very instant the train killed him. And that's all we'll ever know about him.

THIS is how a man dies. This is how a MAN . . . lives!

'They shall not grow old as we that are left grow old;
age shall not wither them nor the years condemn;
At the going down of the sun and in the morning, we shall remember them''

- Tomb of the Scottish Unknown Soldier, Edinburgh