Friedrich Nietzsche was a 19th century Human philosopher who stressed the importance of the unique and autonomous individual, and developed the concept of a super-Human.
In 2154, Malik likened himself and the Augments to Nietzsche's superior-Human, and quoted Nietzche to Captain Jonathan Archer in explaining his motivations: "Mankind is something to be surpassed." (ENT: "Borderland")
This character was only mentioned in dialogue.
The quote comes from the prologue of Nietzsche's Thus Spoke Zarathustra.