It's a bad habit not to go to bed at night. Thinking carefully, seems there's nothing has to be done, all just browse some websites, play some games, watch some darma, update some WEIBO, killing time, that's all. The last thing i'd like to do is to go to bed. Afterwards, i thought again, i realized things got even worse on the rest days. From Friday evening, without work stress, i know that i can get up late the next day, no rings in the morning, no punch in at work. I can get up whenever i want. I have this special right only once during the whole week, it's such a pity if i don't use it. And because i got up late in Sat., the day seems like much shorter than usual. Time slips away when i'm not aware of. Till the night, i fould i did nothing meaningful. I feel a little blank, and dull. So i'm not reconciled that the day finished like this. I stay up late, seems the day becomes longer in this way. But actually it's not, it only causes a similar Sunday and a sleepy Monday morning. I need a very very big strength to fight the habit of staying up late. OK, stop here, i have to go to bed..