Don't stress minor issues at the expense of the central task.

不要因次要问题而冲淡了中心任务。

《新英汉大辞典》

This may sound minor, until you find that you're the one doing the paperwork at the expense of real work (building your product, selling to and serving clients, etc.).

这个听起来好像是小事一桩，直到你发现你牺牲了实际工作（创立产品，销售产品和为顾客服务等）来处理这些文书工作的时候，你就不这么认为了。

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