虚度光阴

bù yào xū dù guāng yīn

不要虚度光阴。

Don't putter your time away.

qǐng jì zhù bù yòng lái zuò shàn shì de shí jiān jiù shì xū dù guāng yīn

请记住，不用来做善事的时间就是虚度光阴。

Remember that time not used for doing good is lost time.