Second, I'm curious why courage is a virtue. Socrates says that "bad movement ... is a restrained or hindered motion" (415d), while virtue is possessed by a good sound which is "always unimpeded" and whose movement is "unrestrained and unhindered and so is always flowing" (415d). If the function of courage is opposing bad flows, and bad flows are flows which are restrained, then does courage simply slow down those bad flows even more? Or does the "opposition" take the form of breaking up the hindered flow? That is, to act in an opposite manner to vice would be to oppose the hindering of flow. I guess that's a better understanding.
(2) 414c. "Yes, Socrates, but getting it to do so is like trying to haul a boat up a very sticky ramp!" Well said, Hermogenes!
(3) 417b. "the good penetrates everything". I don't know what this means. Here are some options: the good is the cause of everything, the good is present in everything, the good is more powerful than everything, and the good controls everything.
I'm still with y'all! Happy reading, everyone!