 A mathematical discovery ascribed to Hippias is sometimes called the quadratrix of Hippias.His great skill seems to have consisted in delivering grand show speeches; and Plato has him arrogantly declaring that he would travel to Olympia, and there deliver before the assembled Greeks an oration on any subject that might be proposed to him; and Philostratus in fact speaks of several such orations delivered at Olympia, and which created great sensation.If such speeches were published by Hippias, then no specimen has come down to us.