三十年河東，三十年河西 [－－－－东－－－－－－]

Jyutping saam1 sap6 nin4 ho4 dung1 ， saam1 sap6 nin4 ho4 sai1
Pinyin sān shí nián hé dōng ， sān shí nián hé xī

Definitions (Wiktionary)
  1. proverb
    prosperity and decline never last; everything in life is cyclical; life has its ups and downs

三十年河東，三十年河西 [－－－－东－－－－－－]

Jyutping
Pinyin sān shí nián hé dōng , sān shí nián hé xī

Definitions (CC-CEDICT)
  1. the river flows thirty years to the East, thirty years to the West (proverb)
  2. change is the only constant