3 sentences

1. 黑夜将永无止境。

   hēi​yè jiāng yǒng wú zhǐ​jìng.

   Night will never end.

   Source: OpenSubtitles

2. 古人云：‘学无止境。’

   gǔ​rén yún:‘xué wú zhǐ​jìng.’

   As the ancients said, 'There is no end to learning.'

   Source: Dong Chinese Dictionary

3. 无止境的贪欲最终会让人走向毁灭。

   wú zhǐ​jìng de tān yù zuì​zhōng huì ràng rén zǒu​xiàng huǐ​miè.

   Endless greed will eventually lead a person to destruction.

   Source: Dong Chinese Dictionary