nián / qīng / shí / kě / yǐ / jí / shí / xíng / lè / dàn / yě / yào / wèi / jiāng / lái / fù / zé

年轻时可以及时行乐，但也要为将来负责。

It is fine to enjoy life while young, but we must also take responsibility for the future.