FAUST: What is your name?
MEPHISTOPHELES: The question seems absurd / For someone who despises the mere word, / Who treats appearances as vain illusion / And seeks the truth in such remote seclusion.
FAUST: But with you gentlemen the name/ And nature’s usually the same, /And we can often recognize The Liar, the Destroyer, or the Lord of Flies. / Who are you, then?
MEPHISTOPHELES: A part of that same power that would/ Forever work for evil, yet forever creates good.
For more on this please see The Realm of the Mothers
(Goethe Faust, Part I Scene iii)