Note: I'm not sure if it belongs on this site, but I'm not sure where else I should ask it.
In the title/theme song of the sadly short-lived Firefly series, they say "Burn the land and boil the sea, you can't take the sky from me."
I personally would say this comes from the ancient Greek myth of Daedalus and Icarus. Ovidius (also known as Ovid) used this myth in his 'Metamorphoses', in which Icarus dies and becomes the Icarian Sea.
At the start of this piece of poetry by Ovidius, he writes: "Omnia possideat, non possidet aera Minos", which (roughly) translates to: "He, Minos, may possess everything, but possessing the sky he does not," or in better English: "Minos may possess everything, but he does not possess the sky." I don't quite recall what else Ovid said about this, but if I remember correctly, he did (explicitly) say something about the land and the sea not being available.
Is this a coincidence or did the composer of the theme actually try to catch the essence of this myth and use it in the theme? Did the composer or someone else ever talk about the song, maybe explaining other parts of it?
(This may sound like a strange question, but we spent half a year studying and translating the Metamorphoses of Ovidius last year at school.)