Perhaps for two reasons: first, God wants us to lean on him day by day; and second, he knows we can’t handle looking forward to a whole lifetime all in one chunk.

可能出于两个原因：首先，上帝希望我们一天接一天的仰靠他； 其次，他知道我们是承受不了那种一下打包得到全部的人生的期望。

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So it's a big chunk to handle.

WHITEHOUSE: President Obama and Secretary of Education Arne Duncan Discuss College Affordability | The White House

Nikon and Sprint have even partnered with UPS to handle a good chunk of their shipping duties.

ENGADGET: Inside UPS' Worldport: How a shipping titan moves 2,000 packages every 17 seconds