According to Hitler, it was “the sacred mission of the German people…to assemble and preserve the most valuable racial element and raise them to the dominant position.” “All who are not of a good race are chaff,” wrote Hitler. It was necessary for Germans to “occupy themselves not merely with the breeding of dogs, horses, and cats but also with care for the purity of their own blood.” Hitler ascribed international significance to the elimination of Jews, which “must necessarily be a bloody process.”