Another good thing to do when you're really stuck is walk away. Take a break. Come back and look at it with fresh eyes of your own.

当你卡住的时候另外一件有益的事,就是走开休息一会儿,再回来看代码的时候你的眼睛就清醒多了。

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You need to let your body rest, so that you can get better quicker.

你要让你的身体得到充足的休息，这样你才能快快好起来。

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So you get the profits of the firm minus the disutility of having missed all that sleep.

你的收益是公司的利润,减去放弃了休息的负效用

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