Nazism is an far-right, fascist, ideology that is heavily inspired from the works of Oswald Spengler. The Nazis believed that only the Aryan (German) race was capable of building nations and other races, notably the Jewish race, were agents of the corruptive forces of capitalism and Marxism, both of which the Nazis opposed. They considered the Aryan race the 'Master race', which meant that they thought that the Aryans were the most biologically evolved of humans. They adapted Charles Darwin's theory of evolution and applied it to humans, the practical application of this was called eugenics. 