【正确答案】Sticking to high moral standards is easier said than done. Once I went to visit my former high school teacher. It was very crowded at the bus station. When the bus was pulling into the station, people started to push. Just at that time, I saw a person sneaking his hand into another person's pocket. Should I do something to stop him? My conscience told me to do something, but what if the thief has a knife? Just at that time, a young man stood up and stopped the thief just in time. All in the bus, including me, gave the young man thunderous applause. But a little while later, I felt ashamed, for I realized that it is true that sticking to high moral standards is easier said than done (at least for me).