[133b]
grasp the greatness of the difficulty involved in your assumption that each idea is one and is something distinct from concrete things.”
“How is that?” said he.
“There are many reasons,” he said, “but the greatest is this; if anyone should say that the ideas cannot even be known if they are such as we say they must be, no one could prove to him that he was wrong, unless he who argued that they could be known were a man of wide education and ability and were willing to follow the proof through many long and elaborate details;
