《世说新语·品藻》
客人问道： 怎么知道呢？ 
客曰： 何以知之？ 
The guests asked: "How do you know?"
<s>[INST] Give the modern Chinese and English translation for the following Classical Chinese passage: 客曰： 何以知之？  [/INST] Modern Chinese: 客人问道： 怎么知道呢？  English: The guests asked: "How do you know?"</s>
Give the modern Chinese and English translation for the following Classical Chinese passage: 客曰： 何以知之？
user
Modern Chinese: 客人问道： 怎么知道呢？  English: The guests asked: "How do you know?"
assistant