Together With Haeckel's Critics Answered. Ernst Haeckel Was Always Quotable, Even When Wrong. Although Best Known For The Statement Ontogeny Recapitulates Phylogeny, He Also Coined Many Words Commonly Used By Biologists Today, Such As Phylum, Phylogeny, And Ecology. On The Other Hand, Haeckel Also Stated That Politics Is Applied Biology, A Quote Used By Nazi Propagandists. The Nazi Party, Rather Unfortunately, Used Not Only Haeckel's Quotes, But Also Haeckel's Justifications For Racism, Nationalism And Social Darwinism.