Terminal Quest (Unabridged‪)‬

He was the last of his race, and although he was wiser, stronger, and more intelligent than the earth men who had invaded his planet and exterminated the rest of his race, he was no match for their weapons. He survived by placating his tormentors. This Poul Anderson short story is a great study of humanity that will leave you with a lump in your throat at the end.