Fascism and communism, which made humanity suffer dark times, are considered to be opposed ideas. However, these ideologies are fed from the same source, on the grounds of which they can attract masses to their side. This source is the materialist philosophy and its adaptation to nature, which is Darwin’s theory of evolution. The acknowledgement of the scientific invalidity of this theory that serves as a basis for cruel dictators and vicious ideological trends will bring about the end of all these detrimental ideologies.