Darwinism met with such overwhelming success because it provided, on the basis of inheritance, the ideological weapons for race and well as class rule and could be used for, as well as against, race discrimination. Politically speaking, Darwinism as such was neutral, and it has led, indeed, to all kinds of pacifism and cosmopolitanism as well as to the sharpest forms of imperialistic ideologies. In the seventies and eighties of the last century, Darwinism was still almost exclusively in the hands of the utilitarian anti-colonial party in England. And the first philosopher of evolution, <a href="https://www./author/show/52666.Herbert_Spencer" title="Herbert Spencer" rel="nofollow">Herbert Spencer</a>, who treated sociology as part of biology, believed natural selection to benefit the evolution of mankind and to result in everlasting peace. For political discussion, Darwinism offered two important concepts: the struggle for existence with optimistic assertion of the necessary and automatic "survival of the fittest," and the indefinite possibilities which seemed to lie in the evolution of man out of animal life and which started the new "science" of eugenics.