烟霞说……

叶无青

Difference

"I can always tell a graduate class from an undergraduate class," observed the instructor in one of my graduate engineering courses at California State University in Los Angeles. "When I say, ';Good afternoon,'; the undergraduates respond, ';Good afternoon." But the graduate students just write it down."  

蓝天白云

…………
被你搞糊涂了
为什么是烟霞说？