I'm having a difficult time following W's argument in section 6. I don't yet get what he means by "training." Is he saying that the sort of training described by Augustine might lead to one kind of understanding but that such an understanding would be changed if it occurred under other circumstances? What is the relationship between training & understanding? I'm going to turn to the commentary & see if that clears things up.
Christopher Robinson & Joseph Duemer read Wittgenstein's Philosophical Investigations