所有的进步，所有的发展都来自挑战和相应的回应。没有挑战就没有回应，没有发展，没有自由，也没有幸福。
To engage in frequent and even heated online debate, you have to do a lot of homework before hand, find answers yourselves and thus you develop the analytical skills which benefit both your academic career and your future life. However it also has its weakness: the classroom time is squeezed, and the learning will be less systematic.
要参与频繁甚至激烈的在线辩论，你必须事先做大量的家庭作业，找到答案，从而发展有助于你的学术生涯和未来生活的分析能力。然而，它也有其弱点：课堂时间被挤压，学习将不那么系统。
Attending a well-prepared lecture is a most rewarding experience: it can open a new horizon for you and save much of your time as well— time you might otherwise spend reading one book after another. Yet the fault of the lecture system is that it cultivates a bad habit of passive learning.
参加一个准备充分的讲座是一个非常有益的经历：它可以为你打开一个新的视野，并节省你的大部分时间——否则你可能会花一个又一个的时间读一本书。然而，授课制度的错误在于它培养了被动学习的坏习惯。
In my opinion, both systems, online learning or campus study, must be improved and a hybrid method may gain more popularity among us students.
在我看来，这两个系统, 线上或线下学习，必须通过改进和混合的方法可能获得我们的学生更多的欢迎。
