既來之，則安之 [－来－－则－－]

Jyutping gei3 loi4 zi1 , zak1 on1 zi1
Pinyin jì lái zhī , zé ān zhī

Definitions (CC-CEDICT)
  1. Since they have come, we should make them comfortable (idiom). Since we're here, take it easy.
  2. Since this is so, we should accept it.
  3. Now we have come, let's stay and take the rough with the smooth.
  4. If you can't do anything to prevent it, you might as well sit back and enjoy it.