Wǔshí bù zhòng shù; liùshí bù gài fáng.

五十不種樹, 六十不蓋房。

Lit [At age] fifty don't plant trees [and at age] sixty don't build a house.

Fig Don't wait until late in life to get started, or you will have no time to enjoy the benefits of your labors; start early in life.

Topics AGE BEGINNING STARTING