 As concerns Husserl’s case against Protagorean relativism, Husserl himself admits that his arguments will only be convincing for those philosophers who already accept that truth is absolute. Husserl is more ambitious with respect to species relativism. He believes that it can be shown that species relativism is a self-refuting doctrine (cf. Føllesdal 1958, 37–39; Sukale 1977, 47–48).