北海以北半度温良南城以南温暖如初
[bĕi hăi yĭ bĕi bàn dù wēn liáng nán chéng yĭ nán wēn nuăn rú chū]
'North of the Northern Sea Half Degree Temperament; South of the Southern City Ever-Warm Again' poetically delineates different regional climates (north cold, south warm). This might metaphorically express varying personal moods/traits across diverse life stages or environments.