<P> Beyond Good and Evil has the most references to "will to power" in his published works, appearing in 11 aphorisms . The influence of Rolph and its connection to "will to power" also continues in book 5 of Gay Science (1887) where Nietzsche describes "will to power" as the instinct for "expansion of power" fundamental to all life . </P> <P> Karl Wilhelm von Nägeli's 1884 book Mechanisch - physiologische Theorie der Abstammungslehre, which Nietzsche acquired around 1886 and subsequently read closely, also had considerable influence on his theory of will to power . Nietzsche wrote a letter to Franz Overbeck about it, noting that it has "been sheepishly put aside by Darwinists". Nägeli believed in a "perfection principle", which led to greater complexity . He called the seat of heritability the idioplasma, and argued, with a military metaphor, that a more complex, complicatedly ordered idioplasma would usually defeat a simpler rival . In other words, he is also arguing for internal evolution, similar to Roux, except emphasizing complexity as the main factor instead of strength . </P> <P> Thus, Dumont's pleasure in the expansion of power, Roux's internal struggle, Nägeli's drive towards complexity, and Rolph's principle of insatiability and assimilation are fused together into the biological side of Nietzsche's theory of will to power, which is developed in a number of places in his published writings . Having derived the "will to power" from three anti-Darwin evolutionists, as well as Dumont, it seems appropriate that he should use his "will to power" as an anti-Darwinian explanation of evolution . He expresses a number of times the idea that adaptation and the struggle to survive is a secondary drive in the evolution of animals, behind the desire to expand one's power--the "will to power". </P> <P> Nonetheless, in his notebooks he continues to expand the theory of the will to power . Influenced by his earlier readings of Boscovich, he began to develop a physics of the will to power . The idea of matter as centers of force is translated into matter as centers of will to power . Nietzsche wanted to slough off the theory of matter, which he viewed as a relic of the metaphysics of substance . </P>

Who said the ultimate moral good was the will to power