《文心雕龙·论说》
所以，道理要讲得全面而通达，避免写得支离破碎；必须做到思想和道理统一，把论点组织严密，没有漏洞；文辞和思想密切结合，使论敌无懈可击：这就是写论文的基本要点。
故其义贵圆通，辞忌枝碎，必使心与理合，弥缝莫见其隙；辞共心密，敌人不知所乘：斯其要也。
Therefore, the reasoning must be comprehensive and clear, avoiding fragmentation; ensuring the unity of thought and reasoning, organizing the arguments strictly and leaving no loopholes; the rhetoric and the thought must be closely integrated, making the opponent’s arguments irreproachable: these are the basic points of writing an essay.