屿南凉北
[yŭ nán liáng bĕi]
“Yu Nan Liang Bei” translates to the geographic context like “warmth from the southern island and coolness of the northern region”. In a metaphorical sense, it can be used for expressing two different atmospheres in life, possibly the contrast between warmth of some people (in the south) and aloofness or detachment (coolness) of others (in the north).