I love this song so much. From the information below the video: Legend claims this song goes back to the Bundshuh rebellion of 1525 when the peasants rebelled against their oppression by the Swabian princes. The revolt was a failure, and serfdom continued for another three hundred years in Germany (the words to this song first appeared on leaflets in 1780). The concept of "freedom of thought" has nearly always been considered dangerous, and the song was banned for many years before the 1848 revolution, especially as it was seen to be associated with the ideals of the French Revolution. It was widely sung in pre-Hitler Germany and brought to the USA by German immigrants fleeing Nazi-Germany. It is also said to have been sung in German concentration camps between 1933 and 1945. The original lyricist and composer are unknown. Die Gedanken Sind Frei, my thoughts freely flower, Die Gedanken Sind Frei, my thoughts give me power, No Scholar can map them, no hunter can trap them, No man can deny, Die Gedanken Sind Frei! I think as I please and this gives me pleasure, My conscience decrees this right I must treasure, My thoughts will not cater to duke or dictator, No man can deny, Die Gedanken Sind Frei! And should tyrants take me and throw me in prison, My thoughts will burst free like blossoms in season, Foundations will crumble and structures will tumble, And free men will cry, Die Gedanken Sind Frei! And now I renounce forever my sorrows, And never again to fret my tomorrows, I'll always have laughter and joy ever after, For in my heart I'll sing, Die Gedanken Sind Frei!