gǔ / rén / cháng / quàn / jiè / shì / rén / bù / kě / zì / yù / ér / wàng / jì / zì / jǐ / de / zé / rèn

古人常劝诫世人，不可恣欲而忘记自己的责任。

The ancients often warned people not to indulge their desires and forget their responsibilities.