Recently, I happened to read The Cold Equations, a 1954 science fiction short story by American writer Tom Godwin which was selected as one of the best science-fiction short stories published before 1965 by the Science Fiction Writers of America. I find it hard to imagine how someone can mix such levels of simplicity and complexity in just one tale. Here is a summary from Wikipedia.
The story takes place entirely aboard an Emergency Dispatch Ship (EDS) headed for the frontier planet Woden with a load of desperately needed medical supplies. The pilot, Barton, discovers a stowaway: an eighteen-year-old girl. By law, all EDS stowaways are to be jettisoned because EDS vessels carry no more fuel than is absolutely necessary to land safely at their destination. The girl, Marilyn, merely wants to see her brother, Gerry, (she hadn’t seen her in 10 years) and was not aware of the law. When boarding the EDS, Marilyn saw the “UNAUTHORIZED PERSONNEL KEEP OUT!” sign, but thought she would at most have to pay a fine if she were caught. Barton explains that her presence dooms the mission by exceeding the weight limit, and the subsequent crash would kill both of them and doom the colonists awaiting the medical supplies. After contacting her brother for the last moments of her life, Marilyn willingly walks into the airlock and is ejected into space.
She told the pilot,
“I keep remembering the things they did for me, and it’s the little things they did that seem to be the most important to me, now. Like Gerry — he sent me a bracelet of fire rubies on my sixteenth birthday. It was beautiful — it must have cost him a month’s pay. Yet I remember him more for what he did the night my kitten got run over in the street. I was only six years old and he held me in his arms and wiped away my tears and told me not to cry, that Flossy was gone for just a little while, for just long enough to get herself a new fur coat, and she would be on the foot of my bed the very next morning. I believed him and quit crying and went to sleep dreaming about my kitten coming back. When I woke up the next morning, there was Flossy on the foot of my bed in a brand-new white fur coat, just like he had said she would be. It wasn’t until a long time later that Mama told me Gerry had got the pet-shop owner out of bed at four in the morning and, when the man got mad about it, Gerry told him he was either going to go down and sell him the white kitten right then or he’d break his neck.”
And the pilot replied,
“It’s always the little things you remember people by, all the little things they did because they wanted to do them for you. You’ve done the same for Gerry and your father and mother; all kinds of things that you’ve forgotten about, but that they will never forget.”
According to the cold equation,
“h amount of fuel will power an EDS with a mass of m safely to its destination; and a second physical law had decreed: h amount of fuel will not power an EDS with a mass of m plus x safely to its destination.”
“Existence required order, and there was order; the laws of nature, irrevocable and immutable. Men could learn to use them, but men could not change them. The circumference of a circle was always pi times the diameter, and no science of man would ever make it otherwise. The combination of chemical A with chemical B under condition C invariably produced reaction D. The law of gravitation was a rigid equation, and it made no distinction between the fall of a leaf and the ponderous circling of a binary star system. The nuclear conversion process powered the cruisers that carried men to the stars; the same process in the form of a nova would destroy a world with equal efficiency. The laws were, and the universe moved in obedience to them. Along the frontier were arrayed all the forces of nature, and sometimes they destroyed those who were fighting their way outward from Earth. The men of the frontier had long ago learned the bitter futility of cursing the forces that would destroy them, for the forces were blind and deaf; the futility of looking to the heavens for mercy, for the stars of the galaxy swung in their long, long sweep of two hundred million years, as inexorably controlled as they by the laws that knew neither hatred nor compassion.”
After she was gone,
“A cold equation had been balanced and he was alone on the ship. Something shapeless and ugly was hurrying ahead of him, going to Woden, where her brother was waiting through the night, but the empty ship still lived for a little while with the presence of the girl who had not known about the forces that killed with neither hatred nor malice.