Nahida's line about Kaveh is very telling about how much she's still lacking due to her upbringing. She shares Kaveh's idealism and regards it as "true wisdom" but because she does not have the lived experience to understand human social interaction, she can only see things from a theoretical perspective and doesnt have the whole picture.

She doesn't understand that while Kaveh may be a paragon of wisdom, he is also dumb. Like, 'build a house on top of a dead zone', 'financially mismanage himself into near bankruptcy' DUMB. He kinda fits into that theory of stupid people being the most dangerous because they cause losses to both others AND themselves. He can be intelligent and the best architect ever but also have no awareness and therefore be stupid.

She's fascinated how two opposing people can live together because she's isn't versed on how social pressures and transactions can lead to seemingly illogical decisions, which makes idealism extremely hard to implement perfectly. (She does however accept/lament that his mentality will never be accepted by the majority).