"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?
300 Spartans are way easier to manage, most of your 6000 Spartans would be drunken nymphomaniacs and you'd loose them. When you have less of something, that something takes on a greater value, so every one of those 300 Spartans has to be worth 20 of the 6000. How do you think the Aussies beat the Japanese even though they were outnumbered 6 to 1?