一年之計在於春 [－－－计－于－]

Jyutping jat1 nin4 zi1 gai3 zoi6 jyu1 ceon1
Pinyin yī nián zhī jì zài yú chūn

Definitions (CC-CEDICT)
  1. the whole year must be planned for in the spring (idiom)
  2. early planning is the key to success