教課是今天的事, 新工作是明天的事. 孰重孰輕,當聽竹衫林.

As you knew, I like this new job so much. Therefore I rearranged my class schedule to join this conference, because definitely this conference is more important than my class.
(the truth is: we have a smart guy his name is ZhuShanLin, I have to follow his suggestions, but I can't tell you...~~)

It is not a big deal even you can't go.
Take is easy. 上善若水, 道法自然...