Explicit: DON’T BE DUMB.
Implicit: People assume that those who come from lower class families are less intelligent than those who come from more. This includes those living in poverty. If we can change their perception of themselves it will have a positive effect on their ability and willingness to make an effort to advance. It might also change other people perception of them.
Extended: Education is the key to erasing class lines or at the very least evening the playing field a little bit. Knowledge gives people the confidence and ability to do more for themselves. If people who are under-resourced and feel marginalized get the confidence and motivation to become lifetime learners it will do nothing but good for their communities.