Pumpernickel the same basic story, Napoleon declared that the bread was no good for him, but was only good () for his horse: "". However, the name "Nickel" is not confirmed for any of Napoleon's many horses. Additional folk etymology grew from a "witty interpretation", proposed by seventeenth-century satirist Johann Balthasar Schupp, that the bread was only "good for "Nicol"", a nickname for a weak or puny horse. Pumpernickel has been long associated with the Westphalia region of Germany, first referred to in print in 1450. Although it is not known whether this and other early references refer to precisely the
What Is and What Should Never Be descending riff [of "What Is and What Should Never Be"] is amazing: It's like a bow is being drawn back, and then it releases. The rhythm of the vocals is almost like a rap. It's insane — one of their most psychedelic songs." This was also one of the first songs recorded by the band for which Robert Plant received writing credit. According to rock journalist Stephen Davis, the author of the Led Zeppelin biography "Hammer of the Gods: The Led Zeppelin Saga", the lyrics for this song reflect a romance Plant had with his wife's younger sister. "What Is