The wise man knows he knows nothing；the dunce thinks he knows all.
Improvement
One student to another： “How are your English lessons coming alongalong adv.往前， 向前？”
“Fine. I used to be one who couldnt understand the English men， and now its the English men who cant understand me.”
聪明人知道自己不懂什么，蠢人则认为自己什么都懂。
进步
一位学生对另一位说：“你的英语最近学的怎么样？”
“很好，我过去不懂英国人说话，可现在是英国人不懂我的话了。”