Never too old to learn; never too late to turn.

学习不厌老，改过不嫌迟。

youdao

Never too old to learn, never too late to turn.

活到老学到老，亡羊补牢为时未晚。

youdao

Never too old to learn, never too late to turn.

活到老学到老，亡羊补牢为时未晚。

youdao