My purpose in this chapter and the next is to come to a fuller understanding of the Cratylus’ conclusions and their implications by bringing them to bear on some related works. I here consider the Platonic Seventh Letter and the last part of the Theaetetus, as well as some uses of logoi in the later dialogues; in Chapter VII, I attempt to show that the Sophist account of false statement is closer to the Cratylus than is often thought.