Or does anyone, do you think, understand the name of anything when he does not know what the thing is? Theaetetus By no means. Socrates Then he does not understand knowledge of shoes if he does not know knowledge. Theaetetus No. Socrates Then he who is ignorant of knowledge does not understand cobblery or any other art. Theaetetus That is true. Socrates Then it is a ridiculous answer to the question “what is knowledge?” when we give the name of some art; [147c] for we give in our answer something