Wherever I drove my old car over 55 miles per hour ,it vibrated terribly, so I decided to sell it. My first customer wanted to buy the car, and I battled with my conscience over whether or not to tell him of the vehicle's problem. Finally I did the right thing. Expecting him to drop the deal, I was surprised by his reply.

　　That's okay, he said. I'm buying this car for my daughter. If she complains about a vibration, I'll know she's driving too fast.

Notes:

　　(1) advantage n.优点；好处

　　(2) vibrate v.震动；颤动

　　(3) conscience n.良心

　　(4) deal n.交易；成交

　　(5) complain about 对…进行抱怨