思前想后

思前想後
sīqiánxiǎnghòu
  1. to consider past cause and future effect (idiom); to think over the past and future
  2. to ponder over reasons and connection

CEDICT

Entry Composition

1 思 sī
  1. to think
  2. to consider
2 前 qián
  1. front
  2. forward
  3. ahead
  4. first
  5. top (followed by a number)
  6. future
  7. ago
  8. before
  9. BC (e.g. 前293年)
  10. former
  11. formerly
3 想 xiǎng
  1. to think (about)
  2. to think of; to devise
  3. to think (that); to believe (that)
  4. to desire; to want (to)
  5. to miss (feel wistful about the absence of)
=4 后 hòu
  1. empress
  2. queen
  3. (archaic) monarch
  4. ruler
=4 后 hòu
  1. back
  2. behind
  3. rear
  4. afterwards
  5. after
  6. later
  7. post-