禍福無常

祸福无常
huòfúwúcháng
disaster and happiness do not follow rules (idiom); future blessings and misfortunes are unpredictable

CEDICT

禍患與福分沒有一定的法則。明．孫梅錫《琴心記．第三九齣》：「禍福無常，憂喜難定。」也作「禍福靡常」。

重編國語辭典

Entry Composition

1 禍福 huòfú disaster and happiness
2 無常 wúcháng
  1. variable
  2. changeable
  3. fickle
  4. impermanence (Sanskrit: anitya)
  5. ghost taking away the soul after death
  6. to pass away
  7. to die