Slughorn's take on Muggleborns is kind of indicative of his pureblood pov, I think... he's *very* impressed by Lily, but when talking to Harry, he still sounds a bit surprised that a muggleborn should be so talented.
I think his preference for Lily and indifference for Snape has to do with more than their blood status; from what little we've seen, Snape-the-teenager was not exactly charming. Slughorn might have not thought his enough of a "high-flyer", like Arthur Weasley. Any help or useful connections that Lily might have received from being in the "Slug Club" were not available to Snape.
And to bring this back to Sirius... Lily and Snape were both in a position to need the "leg-up" from Slughorn. For Sirius, I think it was entirely optional (if I'm correct in thinking that his family name/reputation would have opened any door for him).
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Date: 2005-09-08 03:38 pm (UTC)I think his preference for Lily and indifference for Snape has to do with more than their blood status; from what little we've seen, Snape-the-teenager was not exactly charming. Slughorn might have not thought his enough of a "high-flyer", like Arthur Weasley. Any help or useful connections that Lily might have received from being in the "Slug Club" were not available to Snape.
And to bring this back to Sirius... Lily and Snape were both in a position to need the "leg-up" from Slughorn. For Sirius, I think it was entirely optional (if I'm correct in thinking that his family name/reputation would have opened any door for him).