《汉书·传·贾谊传》
有人说： 听人说话，一定要看他的行动，这样他就不敢胡说八道了。 
人之言曰： 听言之道，必以其事观之，则言者莫敢妄言。 
Someone said: When you listen to someone talk, you must look at his actions so that he won't dare talk nonsense.
<s>[INST] Translate the following Classical Chinese text into English: 人之言曰： 听言之道，必以其事观之，则言者莫敢妄言。  [/INST] Someone said: When you listen to someone talk, you must look at his actions so that he won't dare talk nonsense.</s>
Translate the following Classical Chinese text into English: 人之言曰： 听言之道，必以其事观之，则言者莫敢妄言。
user
Someone said: When you listen to someone talk, you must look at his actions so that he won't dare talk nonsense.
assistant