Actually, the song is called "The Gael" and is a classic Irish tune that was used in the soundtrack for the movie. I rather like the movie version. I was privileged to hear a rendition of it done by the British Petroleum all Brass band that was truly amazing.
You can't help listening to a tune like that without having your soul get stirred I think.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)