Too many things happened and will happen in these two weeks that it's rather difficult to calm down.  I'll do another presentation in "aesthetics in paintings" (talk about the art of "concreteness and abstraction", i.e. black and white in Chinese paintings) tomorrow during the lesson and prepare for some difficult stuff next week.  Sometimes, you thought you can handle things without too much anxiety coz it's not the first time that it happens but in fact you're just so tied down by the unrest.  Hope everything will be fine, at least up to my usual standard.  A little burnt out.