Haven't written something for long. Sometimes, I feel like writing something but every time i opened my computer,  i just felt my mind so vacant and failed to find a topic to write about. But in fact, so many things would happen every day, and i should have found a lot of things to write about. Maybe it is because i am too lazy and wouldn't like to bother to busy my tired brain, which i know is not a good habit, and it will make you become much lazier. Surely we should refresh our mind every day and try to make our brains more active. Thus we'll become cleverer and we'll find we are dealing with matters more efficiently.