《史记·七十列传·孟尝君列传》
听说先生收来钱就大办酒肉宴席，而且把契据烧掉了，这是为什么？ 
闻先生得钱，即以多具牛酒而烧券书，何？ 
I heard that you had a big banquet with the money you collected, and you burned the promissory notes. Why on earth have you done that?