牛顿发现宇宙中任何两个物体都相互吸引，而且这股引力与它们的质量成比例。

Newton discovered that any two objects in the universe attract each other, and that this force is proportional to their mass.

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我们能发现宇宙万物。

We can discover things about the universe.

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之后的十年或者更迟一些，哈勃发现宇宙是在膨胀的。

Then, a decade or so later, Edwin Hubble discovered that the universe is expanding after all.

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