《梁书·列传·卷十八》
康绚认为他说得对，开洞向东注水，又派人到魏国去施反问计说： 梁朝人最怕开洞，却不怕在野地襄打仗。 
绚然之，开湫东注。又纵反间于魏曰： 梁人所惧开湫，不畏野战。 
Kang Xuan thought he was right to dig a hole to pour water into the east, and sent someone to the State of Wei to use a counter-question to say: The people of Liang Dynasty are most afraid of digging holes.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 绚然之，开湫东注。又纵反间于魏曰： 梁人所惧开湫，不畏野战。  [/INST] Kang Xuan thought he was right to dig a hole to pour water into the east, and sent someone to the State of Wei to use a counter-question to say: The people of Liang Dynasty are most afraid of digging holes.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 绚然之，开湫东注。又纵反间于魏曰： 梁人所惧开湫，不畏野战。
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Kang Xuan thought he was right to dig a hole to pour water into the east, and sent someone to the State of Wei to use a counter-question to say: The people of Liang Dynasty are most afraid of digging holes.
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