"You haven’t seen enough of the world yet,” Mr. Raymond tells Scout, commenting on how special and good her father is, and her innocent belief in human goodness. “You haven’t even seen this town, but all you gotta do is step back inside the courthouse.”
This quote is from Mr. Raymond who is a bitter, old, and cynical man. He has lost hope after witnessing so much evil and hatred in the world. He is speaking to Scout about how good her father is and is addressing her innocent belief in the goodness of human society. Mr. Raymond believes that the town of Maycomb's real side is its racist side whereas Atticus believes that there is some hope for the town left.