3 sentences

1. 这部著作是对古代哲学思想的精彩论述。

   zhè bù zhù​zuò shì duì gǔ​dài zhé​xué sī​xiǎng de jīng​cǎi lùn​shù.

   This work is a brilliant exposition of ancient philosophical thought.

   Source: Dong Chinese Dictionary

2. 古人常在哲学论述中使用大方一词，用来指代广阔无垠的大地。

   gǔ​rén cháng zài zhé​xué lùn​shù zhōng shǐ​yòng dà​fāng yī cí, yòng​lái zhǐ​dài guǎng​kuò wú​yín de dà​dì.

   The ancients often used the term 'Dafang' in philosophical discourses to refer to the vast and boundless earth.

   Source: Dong Chinese Dictionary

3. 他在文章中详细论述了自己的政治观点。

   tā zài wén​zhāng zhōng xiáng​xì lùn​shù le zì​jǐ de zhèng​zhì guān​diǎn.

   He elaborated on his political views in the article.

   Source: Dong Chinese Dictionary