"When Plato was discoursing about his “ideas,” and using the nouns “tableness” and “cupness”; “I, O Plato!” interrupted Diogenes, “see a table and a cup, but I see no tableness or cupness.” Plato made answer, “That is natural enough, for you have eyes, by which a cup and a table are contemplated; but you have not intellect, by which tableness and cupness are seen."