兵家

tā tǎo lùn xiān qín bīng jiā yǔ zhū zǐ de guān xi

他讨论先秦兵家与诸子的关系。

He discusses the relationship between the pre-Qin military strategist and the other systems of thought.

shèng bài nǎi bīng jiā cháng shì

胜败乃兵家常事。

For a military commander, winning or losing is commonplace.