 The two dialogues of Plato, the "Hippias major" and the "Hippias minor" characterize him as vain and arrogant.The "Hippias major" (the authorship of this work by Plato is sometimes doubted) concerns the question about the beautiful, and purposely puts the knowledge and presumption of Hippias in a ludicrous light.The "Hippias minor" discusses the deficiency of our knowledge, and characterizes Hippias as ridiculously vain.