必须要用铁链紧紧地绑住<睡眠时间>。睡眠会吃掉最多时间。杂七杂八的时间会浪费最多时间。发呆、发楞的时间是杂七杂八的时间。
不要制造出杂七杂八的时间。
You must bind up [sleeping time] tightly with an iron chain.
Sleep eats up more time than anything else.
Miscellaneous time is the biggest waste.
Sitting blank-minded is a miscellaneous time.
You must not give miscellaneous time a chance.